How to Grow Potatoes in Florida & Warm Climates: A Complete Guide from Planting to Harvest
If you've ever tried growing potatoes during the summer in Florida, you may have discovered that they don't particularly enjoy our intense heat. That's because potatoes are actually a cool-season crop, and for those of us gardening in Florida and other warm climates, the best time to grow them is during the cooler fall and winter months for a late-winter or spring harvest.
While gardeners in colder parts of the country are waiting for spring to plant their potatoes, we have the advantage of growing them during our mild winters. By the time temperatures begin warming up in spring, our potato plants should already be well on their way to producing a harvest.
Potatoes are also surprisingly easy to grow, and you don't need a large garden to enjoy them. They can be planted directly in the ground, in raised beds, or even in fabric grow bags, making them a great option for gardeners with limited space. In this guide, I'm going to walk you through everything you need to know about growing potatoes in warm climates, including when to plant, how to prepare and chit your seed potatoes, how to grow them in the ground or in containers, and how to care for your plants all the way through harvest.
Why Potatoes Grow Better During Winter in Mild Winter Climates
Potatoes (Solanum tuberosum) are different from many of the tropical vegetables we grow during a hot and humid summer. Although potato plants need plenty of sunlight to grow, they actually prefer cooler temperatures, especially when they're developing their underground tubers. This is why planting potatoes during the right season is one of the most important factors for a successful harvest.
Potato plants grow best when daytime temperatures are relatively mild and nighttime temperatures are cool. Tuber development is generally most favorable when soil temperatures are around 60–70°F. When soil temperatures become excessively hot, potato plants can struggle to initiate and enlarge their tubers, even if the foliage above ground appears healthy. Prolonged heat can also cause plants to mature prematurely, reducing the amount of time they have to produce potatoes.
Fortunately, the cooler months in a sub tropical or tropical climate provide an excellent opportunity to grow this crop. By planting during fall or winter, we can take advantage of mild temperatures and allow the plants to develop before the intense heat of late spring and summer arrives.
When to Plant Potatoes in Subtropical and Tropical Climates
Most traditional potato growing guides recommend planting potatoes in early spring, as soon as the ground is workable. While this advice works well for gardeners in colder climates with snowy winters, it doesn't apply to those of us gardening in subtropical and tropical regions. In fact, by the time spring arrives, we should already be harvesting our potatoes rather than just getting them into the ground.
Potatoes are a cool-season crop that grows best when temperatures are mild, particularly during tuber development. In warmer regions of the southern United States, our fall and winter months provide the ideal growing window. Planting during this time allows potatoes to establish healthy foliage and develop their underground tubers before temperatures begin climbing in spring. Waiting until spring to plant, as gardeners in colder climates typically do, can expose potato plants to excessive heat before they've had enough time to produce a good harvest.
For gardeners in USDA growing zones 11 and above, December is generally a good time to begin planting potatoes, provided temperatures are suitable. In zones 9 and 10, particularly areas that experience mild winters without snow or prolonged freezing temperatures, January is an excellent month to plant. February can still be an option for these regions, but I consider it the last opportunity to get potatoes planted before the growing season becomes too warm. The later you plant, the greater the chance that rising spring temperatures will interfere with tuber development, especially with longer-maturing varieties.
Here in Central Florida, I prefer planting my potatoes in January, which gives them several months of cooler weather to grow before our temperatures begin rising. Depending on the variety and growing conditions, potatoes planted in January can often be ready for harvest around March or April.
The same general approach applies to gardeners throughout the warmer parts of the southern United States, including portions of the Gulf Coast, southern Texas, and other frost-free or mild-winter regions. However, USDA growing zones are based on average annual extreme minimum temperatures, not the length of the cool growing season, so your local climate is just as important as your zone number. The goal is to plant when temperatures are cool enough for healthy tuber development while allowing sufficient time to harvest before excessive heat arrives. If your area occasionally experiences freezing temperatures, be prepared to protect young potato plants, as their foliage can be damaged by frost.
What Are Seed Potatoes?
Unlike most vegetables that we start from botanical seeds, potatoes are typically grown from pieces of actual potato tubers called seed potatoes. If you look closely at a potato, you'll notice small indentations scattered across its surface. These are called eyes, and each eye contains buds that can eventually develop into new shoots.
When you plant a seed potato, those buds begin growing into stems that emerge above the soil surface. As the plant develops, it produces roots and underground stems called stolons. New potatoes form at the ends of these stolons, gradually enlarging as the plant stores energy produced through photosynthesis.
You may be wondering whether you can simply plant potatoes purchased from the grocery store. While some grocery store potatoes can sprout and grow, I recommend purchasing certified seed potatoes from a reputable supplier whenever possible. Certified seed potatoes are produced and inspected under specific standards intended to reduce the risk of introducing certain potato diseases into your garden. Grocery store potatoes may also have been treated with sprout inhibitors, and you often won't know whether the variety is suitable for your climate.
Starting with healthy planting material is especially important because potatoes can carry diseases that affect future crops. Using good-quality seed potatoes is one of the easiest ways to give your plants a healthy start.
Choosing Potato Varieties for Florida and Warm Climates
When choosing potatoes to grow in Florida, I recommend paying particular attention to how long each variety takes to mature. Because our cool growing season is relatively short, varieties that mature earlier are often a better choice than those requiring a long season. The goal is to give your plants enough time to develop a good harvest before temperatures become too warm.
Two varieties I'm offering this season at Jerra's Garden are Yukon Gold and Purple Majesty. Both can be grown in garden beds or containers, and each offers something different in terms of appearance and culinary uses.
Yukon Gold Potatoes
Yukon Gold is one of the most popular yellow-fleshed potato varieties, and for good reason. These potatoes have beautiful golden flesh, a creamy texture, and a naturally rich, buttery flavor. They're extremely versatile in the kitchen and work wonderfully for roasting, boiling, mashing, and making potato salads.
Yukon Gold is also considered a relatively early-maturing variety, which makes it a practical option for gardeners working with a shorter cool-season growing window. Its combination of good flavor, attractive appearance, and versatility makes it an excellent choice for growing at home.
Purple Majesty Potatoes
Purple Majesty is a beautiful specialty potato with deep-purple skin and vibrant purple flesh. What makes this variety particularly interesting is that its purple coloration comes from naturally occurring pigments called anthocyanins, which are also found in foods such as blueberries, purple cabbage, and other deeply colored fruits and vegetables.
These potatoes are especially attractive when roasted or incorporated into colorful dishes, and much of their distinctive purple color remains after cooking. Purple Majesty is a wonderful variety to grow if you're interested in trying something different from traditional yellow or white potatoes. I like growing this one because it seems to have a higher heat tolerance than regular potatoes.
Both varieties can be grown using the same basic methods described throughout this guide.
What Is Chitting Seed Potatoes, and Why Should You Do It?
Before planting your potatoes, there's an optional preparation step called chitting that I recommend considering, especially if you're growing in a climate with a relatively short cool season.
Chitting is simply the process of encouraging seed potatoes to develop short, sturdy sprouts before they're planted in the soil. You may have noticed that potatoes left in a pantry for too long sometimes begin producing long, pale sprouts. This happens because the potato is naturally trying to grow, but when it sprouts in darkness, those shoots often become thin, elongated, and fragile as they search for light.
When we chit seed potatoes, we're encouraging the same sprouting process under more favorable conditions. By placing the potatoes somewhere with bright, indirect light, we can encourage them to produce shorter, stronger sprouts that are less likely to break during planting.
The main advantage of chitting is that it can give your potatoes a head start. Instead of waiting for dormant seed potatoes to begin sprouting underground, you're planting potatoes that have already started developing shoots. This can lead to faster emergence and potentially an earlier harvest, which is particularly useful in Florida because we want our plants to develop before temperatures become excessively hot.
Chitting isn't required for growing potatoes, and healthy seed potatoes can certainly be planted directly into the soil. However, if you have the time and space to do it, I think it's a worthwhile step to consider.
How to Chit Seed Potatoes Step by Step
I recommend beginning the chitting process approximately four to six weeks before your intended planting date. For example, if you're planning to plant your potatoes in January, you could begin preparing them in late November or December. The exact amount of time needed will depend on the variety, how dormant the seed potatoes are, and the temperature of the location where you're keeping them.
Step 1: Inspect Your Seed Potatoes
Begin by examining your seed potatoes and making sure they're healthy and firm. Avoid using potatoes that have soft, rotting, or moldy areas. It's completely normal for healthy seed potatoes to arrive without visible sprouts because potatoes naturally go through a period of dormancy after harvest.
I recommend keeping your seed potatoes whole during the chitting process rather than cutting them into smaller pieces several weeks in advance. Whole potatoes are less likely to dry out while you're waiting for the sprouts to develop. Plan to cut your seed potatoes approximately 2–3 days before planting. This gives the freshly cut surfaces time to dry and form a protective, calloused layer, which helps reduce the risk of pathogens entering the exposed tissue and causing the potatoes to rot. When dividing larger seed potatoes, make sure each piece has at least two healthy eyes, as these are the growing points where new shoots will emerge.
Step 2: Arrange Your Potatoes in a Tray
Place your seed potatoes in a single layer in an egg carton, shallow tray, or small box. If you can identify the end with the greatest concentration of eyes, try positioning that end facing upward. This isn't absolutely necessary, but it can make it easier to observe the sprouts as they develop.
Make sure the potatoes aren't piled on top of one another so they have adequate airflow. You don't need to add soil, water, or fertilizer during this process because the potato already contains the stored energy needed to begin sprouting.
Step 3: Place Them in Bright, Indirect Light
Find a location that receives plenty of bright, indirect light without exposing the potatoes to intense direct sunlight. A bright indoor room, a protected porch, or a location near a window can work well, provided the temperatures are suitable.
Temperatures around 50–70°F can work for chitting, with warmer conditions generally encouraging faster sprouting. The important thing is to avoid excessive heat, freezing temperatures, and prolonged direct sunlight. The combination of light and suitable temperatures helps encourage sturdy sprouts rather than long, pale, fragile ones.
Step 4: Allow the Sprouts to Develop
Over the following weeks, you'll begin noticing small sprouts emerging from the eyes. Depending on the variety, these sprouts may be green, purple, or a combination of colors. You want them to become short and sturdy rather than excessively long.
Ideally, the sprouts should be approximately half an inch to one inch long when you're ready to plant. Don't worry if every potato doesn't sprout at exactly the same time. Some may begin growing within a week or two, while others take longer because of differences in dormancy and storage conditions.
Step 5: Prepare the Potatoes for Planting
Once your potatoes have developed sturdy sprouts and your planting conditions are suitable, they're ready to go into the garden. Handle them gently because even short sprouts can break if they're bumped or handled roughly.
If you're working with larger seed potatoes, this is the point when you can cut them into smaller planting pieces. Allow the cut surfaces to begin healing before planting, and be careful not to damage the sprouts in the process.
Should You Cut Seed Potatoes Before Planting?
You don't necessarily need to cut every seed potato before planting. Small seed potatoes can be planted whole, and in some situations, planting them whole can reduce the risk of rot because there are no freshly cut surfaces.
However, larger seed potatoes can be divided into smaller pieces, allowing you to grow multiple plants from a single potato. I prefer to have one or two good eyes on each piece rather than cutting the potatoes into unnecessarily small sections.
Use a clean, sharp knife to make your cuts, and try to avoid making more cuts than necessary. After cutting, place the pieces in a cool, shaded, well-ventilated location for approximately one to two days so the exposed surfaces can begin to heal. This process is sometimes called suberization, and it helps create a protective layer over the cut surface that can reduce the risk of rotting after planting.
You don't want the seed pieces to become completely dried out or shriveled. The goal is simply to allow the freshly cut surfaces to heal before they're placed into moist soil.
How to Plant Potatoes Directly in the Ground or Raised Beds
Potatoes grow very well in traditional garden beds, provided the soil has good drainage and the plants receive plenty of sunlight. One of the advantages of growing potatoes in the ground is that the roots have more room to spread, and the soil generally retains moisture longer than it would in a fabric grow bag.
Step 1: Choose a Sunny Location
Start by choosing an area of your garden that receives full sun. I recommend aiming for eight hours or more of direct sunlight per day whenever possible. Potatoes can sometimes grow with less sunlight, but adequate light is important because the foliage needs to produce the energy that will eventually be stored in the developing tubers.
In Florida, remember that the sun sits lower in the sky during winter. An area that receives full sun during summer may become partially shaded by trees, fences, or buildings during the winter months. Before planting, take a little time to observe how much sunlight your chosen area receives during the actual growing season.
Step 2: Prepare Your Soil
Potatoes prefer loose, well-draining soil that allows their underground tubers to develop without excessive compaction. They also prefer slightly acidic conditions, generally around a soil pH of 5.0–6.0.
Many Florida soils are naturally sandy, which can provide good drainage, but sandy soil also tends to lose moisture and nutrients quickly. Incorporating finished compost can help improve moisture retention and contribute organic matter to the soil. However, avoid using excessive amounts of undecomposed organic material directly around your seed potatoes.
If your garden tends to hold water after heavy rain, I recommend planting in raised beds rather than directly in the ground. Potatoes are particularly susceptible to problems when the soil remains saturated for extended periods, so drainage is extremely important.
Step 3: Plant Your Seed Potatoes
Once your soil is prepared, dig planting holes or a shallow trench approximately three to four inches deep. Place your seed potato pieces into the soil with the eyes or sprouts facing upward. If you're planting cut pieces, position the healed cut surface downward whenever practical.
For home gardens, I recommend spacing the seed potatoes approximately 10–12 inches apart, with rows about 24–36 inches apart depending on your garden layout. Closer spacing can work, but giving the plants a little extra room helps reduce competition and provides space for tuber development.
After positioning the seed potatoes, cover them with soil and water gently to settle everything into place. Keep the soil moderately moist while waiting for the shoots to emerge, but avoid soaking it excessively.
Step 4: Hill the Soil Around Your Plants
Once your potato plants begin growing, you'll eventually need to add some additional soil around the stems. This process is called hilling, and its primary purpose is to keep the developing potatoes covered and protected from sunlight.
Potatoes develop underground on specialized stems called stolons. As the tubers enlarge, some may begin pushing upward toward the soil surface. When potatoes are exposed to sunlight, their skin can turn green, which indicates light exposure and may be associated with increased levels of naturally occurring glycoalkaloids.
When your plants have established several inches of growth, gently mound approximately two to three inches of additional soil around their bases while leaving healthy foliage exposed. Depending on how deeply you planted them and how much soil settles over time, you may need to repeat this process later in the season.
For varieties such as Yukon Gold and Purple Majesty, I generally prefer a straightforward approach rather than continually adding large amounts of soil. The most important thing is to make sure the developing tubers remain covered. If you notice potatoes becoming exposed, simply add more soil or mulch to protect them.
How to Grow Potatoes in Fabric Grow Bags
If you don't have space for a traditional vegetable garden, growing potatoes in fabric grow bags is an excellent alternative. I especially like this method because it's convenient, doesn't require digging up an entire garden bed, and makes harvesting incredibly easy.
Fabric grow bags also allow you to control the growing medium, which can be helpful if your native soil has poor drainage or other problems. However, because containers are exposed to more air and sunlight, they can dry out faster than traditional garden beds, so you'll need to pay closer attention to watering.
For this method, I recommend using a 15–20 gallon fabric grow bag. This provides a reasonable amount of space for the roots and developing potatoes without requiring an excessively large container.
Step 1: Fill Your Grow Bag With Soil
I recommend making your own soil mix for growing potatoes by combining equal parts topsoil, compost, and peat moss. This combination provides a good balance of nutrients, moisture retention, and drainage while creating a loose growing medium that allows the developing potato tubers to expand easily. Peat moss is especially beneficial because it helps keep the soil light and fluffy while also contributing acidity to the mix. Potatoes prefer slightly acidic soil, ideally with a pH around 5.0–6.0, so incorporating peat moss can help create more favorable growing conditions, depending on the pH of your other ingredients.
To make my soil mix, I simply dump all three ingredients into a large wheelbarrow and mix everything together until it's evenly combined. You can also pour the ingredients onto a large tarp and mix them there, which works especially well if you're preparing enough soil to fill several grow bags. If you absolutely don't want to mix your own soil, my next recommendation would be to use a good-quality potting mix that provides adequate drainage while retaining moisture.
Once your soil mixture is ready, fill your grow bag until the soil surface is approximately six inches below the top of the bag. We're intentionally leaving this extra space because we'll be adding more soil around the potato plants as they begin growing.
Step 2: Amend the Soil Before Planting
Before planting my seed potatoes, I like to amend the soil with a few fertilizers to provide the nutrients the plants will need throughout their growing season. I start by sprinkling an all-purpose fertilizer, such as Espoma Garden-tone, over the soil and lightly working it into the upper layer. This provides a balanced supply of nutrients, including nitrogen, which is especially important during the early stages of growth when potato plants are developing their roots, stems, and foliage.
I also like to incorporate some bone meal as a source of phosphorus and potash as a source of potassium. Phosphorus supports healthy root development and plays an important role in the plant's energy transfer processes, while potassium is particularly important for tuber development, water regulation, and overall potato quality. By incorporating these amendments before planting, we're giving them time to begin releasing nutrients into the soil so they're available as the plants grow.
My fertilizing approach is to provide balanced nutrition early in the growing season and then focus on supporting tuber development as the plants mature. Nitrogen is especially important for establishing healthy foliage, but applying excessive amounts later in the season can encourage continued leafy growth rather than balanced tuber production. Once the plants are established, I prefer to avoid unnecessary additional nitrogen and focus on maintaining adequate phosphorus and potassium levels.
Step 3: Plant Your Seed Potatoes
Place your seed potatoes on top of the soil with the eyes or sprouts facing upward. Space them approximately 8–12 inches apart, adjusting the number of planting pieces according to the actual diameter of your grow bag.
Avoid overcrowding the container. Although it may be tempting to plant as many seed potatoes as possible, overcrowding creates competition for water, nutrients, and growing space, which can affect the size and quality of your harvest.
Once the potatoes are positioned, cover them with approximately three inches of potting mix and water gently. The seed potatoes should now be buried, with a few inches of empty space remaining above the soil surface.
Step 4: Add More Soil as the Shoots Grow
As your potatoes begin growing, green shoots will eventually emerge from the soil. Once those shoots have grown approximately three inches or more above the soil surface, it's time to add another layer of soil.
Gently add soil around the stems until the grow bag is nearly full, making sure to leave the upper leaves exposed. You don't want to bury all the foliage because the leaves need sunlight to continue photosynthesizing and supporting the plant's growth.
For Yukon Gold and Purple Majesty, this initial additional hilling is generally sufficient as long as the developing tubers remain covered. You don't need to continually add soil throughout the entire growing season. If the soil settles or you notice potatoes becoming exposed later, you can always add a little more soil or mulch.
Step 5: Water and Care for Your Grow Bags
After planting, keep the potting mix evenly moist without allowing it to become waterlogged. Fabric grow bags provide excellent drainage, but they also tend to lose moisture faster than garden beds, especially on warm or windy days.
Check the moisture regularly by feeling the potting mix a few inches below the surface. If it's beginning to dry out, water thoroughly and allow the excess water to drain away. Avoid leaving your grow bags sitting in trays of standing water because this can create overly wet conditions around the roots.
As the plants grow, continue monitoring their moisture and nutrient needs. Because frequent watering can wash nutrients out of container growing media, you may need to provide supplemental fertilizer during the season.
How to Care for Potato Plants Throughout the Growing Season
Once your potatoes have sprouted and begun producing foliage, their care is relatively straightforward. The main things to focus on are adequate sunlight, consistent moisture, proper nutrition, and protecting the developing tubers from sunlight.
Sunlight Requirements
Potatoes grow best in full sun, and I recommend providing eight hours or more of direct sunlight daily whenever possible. Although potatoes are considered a cool-season crop, they still need plenty of light to produce the energy required for healthy tuber development.
In Florida, this can sometimes be a balancing act because we want to provide enough sunlight without exposing the plants to excessively hot growing conditions. Fortunately, our winter sunshine is generally less intense than summer sunlight, making full-sun locations ideal during the cooler months.
Watering Potato Plants
Consistent soil moisture is particularly important when potatoes begin forming and enlarging their tubers. Allowing the soil to repeatedly dry out and then become excessively wet can interfere with healthy tuber development.
I recommend watering deeply enough to moisten the root zone while allowing the soil to drain properly. The exact frequency will depend on your soil type, rainfall, temperatures, and whether you're growing in the ground or in containers.
In Florida, potatoes are often grown during one of our drier seasons, so supplemental irrigation may be necessary even though temperatures are relatively cool. Fabric grow bags usually require more frequent monitoring because they lose moisture more quickly than traditional garden beds.
Fertilizing Potato Plants
Here's the general fertilizing schedule I follow:
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At planting: Work an all-purpose fertilizer, such as Espoma Garden-tone, into the soil, along with bone meal and potash.
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One month after planting: If additional nutrients are needed, apply a fertilizer that supplies phosphorus and potassium without excessive nitrogen. This is around the time the plants may be transitioning into active tuber formation, depending on the variety and growing conditions.
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Two months after planting: Reassess the plants and apply another phosphorus- and potassium-focused feeding if needed. For early-maturing varieties, this may be the final fertilizer application of the season.
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As harvest approaches: Stop routine fertilizing once the plants are nearing maturity. At this stage, additional fertilizer is unlikely to provide much benefit.
I generally avoid adding more nitrogen later in the growing season unless the plants show signs of a possible deficiency, such as unusually pale foliage or poor growth. Even then, I recommend checking for other causes first, including watering problems, pest damage, and disease, because yellow leaves don't always indicate a nitrogen deficiency. If additional nitrogen is genuinely needed, a modest application of a balanced fertilizer may help support healthy new growth.
The most important thing to remember is that fertilizing potatoes isn't about applying as much fertilizer as possible. It's about providing the right nutrients at the right time. Healthy foliage is necessary to produce the energy that fills the tubers, while adequate potassium and phosphorus support the processes involved in developing a harvest.
Mulching and Maintaining Soil Temperature
Mulching around potato plants can help conserve moisture, suppress weeds, and moderate soil temperatures. This is particularly helpful in Florida because temperatures can begin warming considerably as we approach spring.
A layer of clean straw or another suitable organic mulch can help keep the soil surface cooler and reduce moisture loss. Mulch can also provide an additional layer of protection if developing potatoes begin approaching the soil surface.
Just remember that mulch isn't a substitute for adequate planting depth and soil coverage. You still want the developing tubers to remain protected from sunlight.
Common Potato Pests and Diseases
Like tomatoes, peppers, and eggplants, potatoes belong to the nightshade family, which means they can be affected by some of the same pests and diseases.
Aphids, flea beetles, caterpillars, and other foliage-feeding insects can occasionally become problems. I recommend checking your plants regularly, including the undersides of leaves, so you can identify pest activity before populations become excessive.
Potatoes can also be affected by fungal and bacterial diseases, especially when conditions are excessively wet or plants remain crowded with poor airflow. Avoid overwatering, provide adequate spacing, and remove severely diseased plant material when necessary.
Crop rotation is another important consideration. Because potatoes share certain pests and diseases with other nightshade crops, I recommend avoiding planting them repeatedly in the same location where tomatoes, peppers, eggplants, or potatoes have recently grown.
Do You Need to Keep Hilling Potato Plants?
One of the most common questions about growing potatoes is whether you need to keep adding soil around the plants throughout the growing season.
You may have heard potatoes described as determinate or indeterminate, similar to the way we describe tomato plants. However, this distinction isn't as clearly defined or consistently used with potatoes as it is with tomatoes.
Yukon Gold and Purple Majesty are often discussed as relatively compact or determinate-type varieties, but that doesn't mean they should be treated as if all their tubers will develop at one exact depth.
The main purpose of hilling is to keep the developing potatoes protected from sunlight, prevent greening, and maintain suitable growing conditions around the underground stems.
For the varieties we're discussing, I generally recommend planting at the proper depth and adding soil once the shoots have developed. In garden beds, you may need to hill once or twice depending on how much soil settles and whether any tubers become exposed.
In grow bags, I prefer the method of starting with the soil level below the rim and then adding additional potting mix once the shoots have grown several inches. After that, the plants can continue growing without repeatedly burying their foliage.
It's also important to understand that continually adding soil doesn't automatically mean you'll produce more potatoes. Proper spacing, healthy foliage, suitable temperatures, consistent watering, and adequate nutrients all play important roles in determining your final harvest.
How Long Do Potatoes Take to Grow?
Most commonly grown potato varieties take approximately 80–120 days to mature, although the exact timing depends on the variety and growing conditions. Some early varieties may be ready sooner, while longer-season varieties can require additional time.
For gardeners in Florida planting during winter, this generally means harvesting sometime between late winter and spring. For example, potatoes planted in January may be ready to harvest around March or April.
One thing to remember is that the number of days to maturity is only an estimate. Cool weather, soil conditions, watering, and other environmental factors can all influence how quickly your potatoes develop.
Rather than relying exclusively on the calendar, I recommend paying attention to the plants themselves. Their growth and eventual dieback can provide useful clues about when the potatoes are approaching maturity.
How to Know When Potatoes Are Ready to Harvest
There are actually two different stages when you can harvest potatoes, depending on how you plan to use them.
The first is harvesting what are commonly called new potatoes. These are young, immature potatoes that are harvested before the plants have completed their full growing cycle. New potatoes typically have very thin, delicate skins and a tender texture. They're especially delicious when cooked shortly after harvesting, but they don't store as well as fully mature potatoes.
If you'd prefer larger potatoes with more developed skins, allow the plants to continue growing until they reach maturity. As the plants finish their natural life cycle, you'll begin noticing the foliage turning yellow, drying out, and eventually dying back.
This natural dieback is usually a sign that the plants are approaching the end of their growing cycle and that the tubers are nearing maturity. If you're planning to store your potatoes, allowing the skins to finish developing before harvesting will help improve their storage life.
For mature potatoes intended for storage, you can generally wait approximately two to three weeks after the vines have died back before digging, provided the soil isn't excessively wet and conditions aren't encouraging rot.
How to Harvest Potatoes From the Ground
Harvesting potatoes from garden beds requires a little patience because you don't want to accidentally damage the tubers while digging.
I recommend using a digging fork or shovel to gently loosen the soil several inches away from the base of the plant. Work your way inward carefully, lifting the soil and searching for potatoes as you go.
Try not to pierce or cut the tubers with your digging tool. Potatoes that are damaged during harvesting generally won't store as well as those with intact skins, so I recommend setting them aside for more immediate use.
Once you've collected your potatoes, avoid leaving them exposed to direct sunlight for extended periods. Move them into a shaded location as you continue harvesting.
How to Harvest Potatoes From Grow Bags
One of my favorite advantages of growing potatoes in fabric grow bags is how easy they are to harvest. Instead of digging through a garden bed, you can simply empty the contents of the grow bag onto a tarp or another clean surface.
Once the soil is spread out, gently search through it and collect your potatoes. This is also a great opportunity to inspect your harvest and separate any potatoes that were damaged or show signs of decay.
If you'd like to harvest a few new potatoes earlier in the season, you can sometimes carefully feel around the upper soil and remove a few without completely emptying the bag. Just be gentle because disturbing the roots and developing tubers too much can affect the remaining crop.
How to Cure and Store Homegrown Potatoes
If you're planning to cook your potatoes shortly after harvesting, you don't necessarily need to cure them. However, if you want to store mature potatoes for an extended period, curing is an important step.
Curing allows minor surface injuries to heal and helps the skins become more durable. This reduces moisture loss and can improve the potatoes' ability to remain in good condition during storage.
After harvesting, gently brush away loose soil, but avoid washing the potatoes unless necessary. Place healthy, mature potatoes in a dark, well-ventilated location with moderate temperatures, ideally around 50–65°F, for approximately 10–14 days. Higher humidity helps prevent excessive moisture loss during this period, but the potatoes should not remain wet or develop condensation.
Once cured, potatoes store best in a cool, dark, well-ventilated environment, generally around 40–45°F with relatively high humidity. This can be challenging in Florida because our homes and outdoor storage areas are often warmer than ideal. If you don't have a suitable cool storage location, plan to use your harvest sooner and check stored potatoes regularly for signs of sprouting or decay.
It's also important to keep potatoes away from sunlight during storage. Exposure to light can cause the skin to turn green, and significantly green or bitter potatoes should be discarded rather than eaten.
Common Mistakes to Avoid When Growing Potatoes in Florida
Although potatoes are relatively easy to grow, there are a few common mistakes that can affect your harvest, particularly in warm climates.
One of the biggest mistakes is planting too late in the season. Because potatoes prefer cooler growing conditions, waiting until spring temperatures are already rising can shorten the amount of time the plants have to develop tubers. This is why I recommend planning your planting schedule around your local winter temperatures rather than following spring planting recommendations intended for northern climates.
Another common mistake is planting potatoes in soil that doesn't drain properly. Potatoes need consistent moisture, but they don't tolerate sitting in saturated soil. If your garden has drainage problems, raised beds or fabric grow bags may provide better growing conditions.
Overcrowding can also become an issue, especially in containers. Giving your plants adequate space helps reduce competition for water, nutrients, and growing room. Similarly, applying too much nitrogen fertilizer can encourage excessive foliage growth without necessarily improving your harvest.
Finally, don't forget to keep developing potatoes covered with soil. Tubers that become exposed to sunlight can turn green, which is why proper planting depth and hilling are important throughout the growing season.
Frequently Asked Questions About Growing Potatoes in Florida
Can You Grow Potatoes Year-Round in Florida?
Although Florida has a long growing season for many vegetables, potatoes generally perform best during our cooler months. The intense heat of summer can interfere with tuber development, so I recommend treating potatoes as a cool-season crop rather than attempting to grow them year-round.
Do You Have to Chit Seed Potatoes Before Planting?
No, chitting is completely optional. Healthy seed potatoes can be planted directly into suitable soil, where they'll naturally begin sprouting. However, chitting can help encourage earlier emergence and give the plants a head start, which may be particularly useful when you're trying to complete your harvest before warm weather arrives.
Can You Grow Potatoes in Containers?
Yes. Potatoes can grow very well in containers, especially larger fabric grow bags that provide adequate drainage and space for tuber development. I recommend using a 15–20 gallon grow bag with quality potting mix and paying close attention to watering because containers can dry out faster than garden beds.
How Many Seed Potatoes Can You Plant in One Grow Bag?
The number of seed potatoes you can plant depends on the actual diameter and volume of your grow bag. For a 15–20 gallon container, I recommend starting with a few properly spaced seed pieces rather than overcrowding the bag. Aim for approximately 8–12 inches between pieces, adjusting the number according to the available growing space.
Do You Need to Cut Seed Potatoes?
Not necessarily. Small seed potatoes can be planted whole, while larger ones can be divided into smaller pieces. Each piece should contain at least one healthy eye and enough potato tissue to support early growth. If you cut your seed potatoes, allow the exposed surfaces to begin healing before planting.
How Often Should You Hill Potato Plants?
The amount of hilling needed depends on your planting method, soil conditions, and whether developing tubers become exposed. For Yukon Gold and Purple Majesty, I generally recommend starting with one additional application of soil after the shoots emerge, then adding more only as needed to keep the tubers covered. The goal is to protect the potatoes rather than repeatedly burying the entire plant.
Can You Reuse Soil From Potato Grow Bags?
Potting mix can sometimes be reused, but I recommend being cautious if the previous potato crop showed signs of disease. Because potatoes are susceptible to several soilborne problems, it's best to avoid immediately replanting potatoes or related nightshade crops in potentially contaminated growing media.
Grow Your Own Potatoes This Winter
Growing potatoes in Florida and other warm climates is all about working with our seasons instead of against them. While gardeners farther north typically grow potatoes during spring and summer, we have the opportunity to take advantage of our mild winters and enjoy fresh potatoes from the garden before the heat of late spring arrives.
Whether you're planting directly in the ground, growing in raised beds, or experimenting with fabric grow bags, potatoes are a rewarding crop that doesn't require a huge amount of space. By choosing suitable varieties, preparing your seed potatoes properly, planting at the right time, and providing consistent care, you can enjoy a productive harvest of homegrown potatoes.
This season at Jerra's Garden, I'm offering Yukon Gold and Purple Majesty seed potatoes in both 2 lb and 5 lb sizes. These are two beautiful varieties to consider if you're planning to grow potatoes during the upcoming winter planting season.
Seed potato pre-orders are open through November 14, 2026, and orders are scheduled to begin shipping in December.