Snow Peas in Zone 8B — Florida

Snow Peas are a fantastic addition to any Florida garden, offering a sweet, crisp flavor that's delicious raw or lightly cooked. In our reversed growing season, you can enjoy fresh, homegrown snow peas while others are just dreaming of spring! Plus, they're incredibly versatile – use them in stir-fries, salads, or simply snack on them straight from the vine.

Sure, Florida gardening comes with its own set of challenges, like humidity and nematodes, but with careful timing, you can successfully grow snow peas. Our long, 303-day growing season gives you a wide window to plant in the cooler months, completely avoiding the worst of the summer heat and humidity.

While direct sowing is preferred, you can start snow peas indoors and transplant them outdoors from mid January through mid February. This can give you a bit of a head start. Just remember to harden them off for about a week before transplanting, gradually exposing them to the outdoor elements.

Space the seedlings about 3-4 inches apart, providing plenty of room for them to climb. Keep an eye on the weather forecast; even though we're past the typical frost date, temperature swings can still happen in Florida. If a cold snap is predicted, be prepared to cover your young plants.

Direct sowing is the way to go with snow peas in Florida. Sow the seeds directly into well-draining soil from early January through early October. They'll germinate best when the soil temperature is between 60-70°F, so keep that in mind as you plan your planting.

Before sowing, amend your soil with compost to improve drainage and fertility. Plant the seeds about 1 inch deep and 3-4 inches apart. Keep the soil consistently moist until germination, which usually takes about a week.

Consistent watering is key for healthy snow pea plants in our Florida climate. While we get a lot of rain during the summer, it's important to provide supplemental watering, especially during the drier periods of fall and winter. Aim for about 1 inch of water per week, but adjust based on rainfall.

Stick your finger about 2 inches deep into the soil – if it feels dry, it's time to water. During our humid months, water at the base of the plants to avoid wetting the foliage, which can encourage fungal diseases. Overhead watering is less of a concern in the fall and winter when humidity is lower.

If the leaves start to wilt or turn yellow, you're likely underwatering. On the other hand, if the leaves become water-soaked or the plants develop root rot, you're overwatering. A layer of mulch around the base of the plants can help retain moisture and suppress weeds, but make sure it doesn't stay too wet in our humid climate.

Snow peas are vining plants and need support to grow properly. A simple trellis made of netting, string, or even repurposed tomato cages will work perfectly. Since snow pea vines are lighter than snap peas, you don't need anything too heavy-duty.

Install the trellis at planting time, so the seedlings can start climbing as soon as they emerge. Gently guide the vines onto the trellis as they grow, and they'll soon start to cling on their own.

You can expect your first harvest of snow peas about 55 days after planting, usually from late February through late December in our Florida climate. The best time to harvest is when the pods are flat, and you can just barely see the outlines of the peas inside. They should be crisp and translucent.

Harvest by gently snapping the pods off the vine, being careful not to damage the plant. Regular harvesting encourages continued production, so check your plants every few days. As our first frost approaches around mid- December, harvest any remaining pods to enjoy, knowing the plants will likely slow down significantly or stop producing entirely.

Here are some common problems you might encounter with snow peas in Florida:

Powdery Mildew

• What it looks like: White or grayish powdery coating on leaves, stems. Leaves curl, yellow, and die.
• What causes it: Fungi thrive in warm days, cool nights, and moderate humidity – something we often get in Florida during the spring and fall. Dry leaf surfaces actually favor it.
• How to fix/prevent it: Improve air circulation by spacing plants properly. Remove affected leaves. Neem oil or potassium bicarbonate sprays can help. Milk spray (1 part milk to 9 parts water) is surprisingly effective. Plant resistant varieties.

Pea Aphids

• What it looks like: Small, soft-bodied insects clustered on stems and leaves. Leaves may be distorted, yellowed, or sticky.
• What causes it: These pests thrive in warm weather and can quickly multiply. They suck sap from the plants, weakening them.
• How to fix/prevent it: Insecticidal soap or neem oil sprays can control infestations. Introduce beneficial insects like ladybugs or lacewings. Strong blasts of water can dislodge aphids from the plants.

Root Rot

• What it looks like: Yellowing leaves, stunted growth, and wilting, even with adequate watering. Roots are brown and mushy.
• What causes it: Overwatering and poorly draining soil create conditions favorable for fungal pathogens that cause root rot. Our heavy summer rains can exacerbate this issue.
• How to fix/prevent it: Improve soil drainage by adding compost and perlite. Avoid overwatering. Ensure good air circulation around the plants. Use raised beds if your soil is consistently waterlogged.

Fusarium Wilt

• What it looks like: Wilting on one side of the plant first, then spreading. Yellow leaves starting on one side. Brown streaks in stem when cut open.
• What causes it: Soil-borne fungus (Fusarium oxysporum). Persists in soil for years. Enters through roots. Warm soil temperatures favor it.
• How to fix/prevent it: No cure once infected – remove and destroy the plant. Plant resistant varieties (look for 'F' on seed labels). Rotate crops on a 4-year cycle. Solarize soil in hot zones. Raise soil pH above 6.5.

Florida Specific Challenges: Our hot summers, very-high humidity, and wet-summer rainfall create a perfect storm for fungal diseases and nematode issues. Selecting resistant varieties, practicing good soil drainage, and being vigilant about watering are essential for successfully growing snow peas in Florida.

Companion planting can be a great way to improve the health and yield of your snow peas. Carrots and radishes make excellent companions because they loosen the soil, which improves drainage and root growth. Cucumbers and corn provide a natural trellis for the snow peas to climb, saving you space in the garden. Lettuce, planted nearby, can act as a ground cover, helping to suppress weeds and retain moisture.

Avoid planting snow peas near onions or garlic, as they can inhibit the growth of the peas. These alliums release compounds into the soil that can be detrimental to legume development.