Snap Peas in Zone 10B — Florida

Snap Peas are a real treat in the Florida garden. The crisp, sweet pods are delicious raw, stir-fried, or lightly steamed. Plus, you get to enjoy a productive harvest during our mild winter months when so many other gardens are dormant.

Sure, Florida gardening has its challenges – humidity, nematodes, and the occasional hurricane, to name a few. But with the reversed growing seasons here, you can grow Snap Peas successfully during the cooler months. With our 360-day growing season, you can harvest these beauties while the rest of the country is bundled up inside.

If you choose to start your Snap Peas indoors, transplant them outdoors from early December through early January. Be sure to harden them off by gradually exposing them to the outdoor elements for about a week before transplanting. This prevents transplant shock.

Space your seedlings 3-4 inches apart. Florida's weather during this time can be unpredictable, so keep an eye out for any unexpected cold snaps. A little row cover can provide extra protection if needed.

Direct sowing is the way to go with Snap Peas. Sow seeds late November through mid October, when the soil has cooled down a bit. Snap Peas, like garden peas, thrive when directly sown in cooler weather.

Before sowing, amend your sandy soil with plenty of compost to improve drainage and nutrient retention. Aim for a soil temperature between 45-70°F for best germination. Plant seeds 1 inch deep and 3-4 inches apart. Keep the soil consistently moist until seedlings emerge.

Snap Peas need consistent moisture to produce those plump, sweet pods we all crave. While they're more tolerant of heat than shelling peas, don't let them dry out, especially when they're flowering and forming pods.

During our fall and winter growing season, aim to water deeply about 1-2 times per week, providing about 1 inch of water each time, unless we've had significant rainfall. Stick your finger about 2 inches into the soil – if it feels dry, it's time to water. Avoid overhead watering as much as possible due to our high humidity; water at the base of the plants to prevent fungal diseases.

Yellowing leaves can indicate overwatering, while stunted growth and shriveled pods signal underwatering. Mulching around your Snap Peas with pine straw or wood chips helps retain moisture and suppress weeds, which is especially beneficial in our sandy soil.

Snap Peas are vining plants, so they need a support structure to climb. A trellis made of string or netting works great, as does chicken wire. Even a "pea brush" made of pruned branches stuck into the ground will do the trick.

Install your support at planting time to avoid disturbing the roots later. A trellis that's 4-6 feet tall is usually sufficient. Gently train the vines to climb the support as they grow, weaving them through the netting or tying them loosely with twine.

You can expect your first harvest of Snap Peas from late to early January, about 60 days after planting. The pods are ready to pick when they're plump, crisp, and the peas inside are fully developed. Don't wait until the pods get too big and tough!

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 brief, mild winters transition toward warmer weather, keep an eye on your plants. Even as the first frost approaches in late December, you can still get a good harvest.

Here are some common problems you might encounter with Snap Peas in Florida:

• Powdery Mildew
• What it looks like: White or grayish powdery coating on leaves, stems, and sometimes fruit. Leaves curl, yellow, and die.
• What causes it: Various fungi that thrive in warm days, cool nights, and moderate humidity.
• How to fix/prevent it: Improve air circulation through spacing and pruning. Remove affected leaves. Neem oil or potassium bicarbonate sprays help. Milk spray (1 part milk to 9 parts water) is surprisingly effective. Plant resistant varieties.
• Pea Aphids
• What it looks like: Tiny green or white insects clustered on stems and undersides of leaves. Stunted growth, curled leaves, and sticky honeydew.
• What causes it: These pests thrive in warm weather and can quickly multiply.
• How to fix/prevent it: Blast aphids off plants with a strong stream of water. Introduce beneficial insects like ladybugs. Insecticidal soap or neem oil can also be effective.
• Root Rot
• What it looks like: Stunted growth, yellowing leaves, and wilting, even with adequate watering. Roots are brown and mushy.
• What causes it: Overwatering and poorly drained soil create conditions for fungal pathogens to thrive.
• How to fix/prevent it: Ensure good drainage by amending soil with compost and avoiding overwatering. Plant in raised beds if necessary. Treat soil with a fungicide.
• 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, humid summers can make it difficult to grow Snap Peas year-round. The high humidity encourages fungal diseases like powdery mildew and root rot. Nematodes in our sandy soil can also damage roots. Planting in the cooler months, choosing disease-resistant varieties, and improving soil drainage are key to success.

Companion planting can really help your Snap Peas thrive. Carrots and radishes are great companions because they help break up the soil, making it easier for Snap Pea roots to grow. Cucumbers and corn provide natural trellises for the peas to climb. Lettuce benefits from the shade provided by the pea vines, keeping the soil cool.

Avoid planting Snap Peas near onions or garlic, as these can inhibit their growth. Onions and garlic are known to stunt the growth of legumes like peas.