Cubanelle Pepper in Zone 10A — Florida

Cubanelle peppers are a fantastic addition to any Florida garden. Their mild, slightly sweet flavor and thin walls make them perfect for frying, roasting, or stuffing. Here in Zone 10A, you can enjoy homegrown Cubanelles in your favorite dishes.

Florida gardening has its quirks: humidity, nematodes, and the occasional hurricane. But with careful timing and the right techniques, you can successfully grow these peppers. Our long, 355-day growing season gives you a great head start.

Starting your Cubanelle pepper seeds indoors is the way to go here. Aim to sow your seeds from late November through mid December. This gives them about eight weeks to get a head start before transplanting.

Use seed trays or small pots filled with a good seed-starting mix. Keep them warm (around 75-80°F) and provide plenty of light—a simple grow light works wonders. Don't forget to water from the bottom to keep the soil consistently moist without damping off issues. Remember, our spring is reversed, so getting these peppers going indoors during our "cooler" months is key.

Transplant your Cubanelle pepper seedlings outdoors from late January through late February. Before planting, harden them off by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the Florida sunshine and breezes.

Space your plants 18-24 inches apart in a sunny spot with well-drained soil. At this time of year, we can still get some cool snaps, so be ready to cover your young plants if a cold front comes through.

Cubanelle peppers need consistent moisture, especially with our sandy soil. While they aren't drought-tolerant, you also don't want to drown them. Aim for moderate watering.

During our drier spring months, check the soil moisture by sticking your finger about two inches deep. If it feels dry, it's time to water. Give them about 1-2 inches of water per week, watering at the base of the plant to avoid getting the leaves wet and encouraging fungal diseases in our humid climate. During our wet summer, you may not need to water at all, unless we have a dry spell.

Drooping leaves can signal underwatering, while yellowing leaves can indicate overwatering. A good layer of mulch around your plants helps retain moisture and suppress weeds, especially important in our sandy soil.

While not strictly necessary, providing some support for your Cubanelle pepper plants can be beneficial. These plants can get quite laden with fruit, and the branches can sometimes break.

Simple stakes or tomato cages work well. Install them at planting time to avoid disturbing the roots later. Gently tie the stems to the support as the plant grows.

Pinching off the first few flowers on your Cubanelle pepper plants can encourage them to produce more fruit later in the season. It might seem counterintuitive, but it really works!

Throughout the growing season, regularly harvest your peppers to keep the plant productive. As the end of the season approaches around late December, you can remove any remaining small peppers to encourage the plant to focus its energy on ripening the larger ones before any potential frost.

You can expect your first harvest of Cubanelle peppers from early April through late May here in Florida. These peppers are typically ready to harvest about 70 days after transplanting.

Look for peppers that are pale yellow-green, thin-walled, and about 4-6 inches long. Gently twist or cut the peppers from the plant, being careful not to damage the branches. Regular harvesting encourages continued production.

As our short days and cooler temperatures approach around late December, harvest any remaining peppers, even if they aren't fully ripe. They will ripen indoors if stored in a paper bag with an apple or banana.

Cubanelle peppers can face a few common problems in Florida's climate. Be on the lookout for bruised fruit, aphids, and blossom end rot.

Thin Walls Bruise Easily

• What it looks like: Dark, soft spots on the pepper's skin.
• What causes it: The thin walls of Cubanelles make them susceptible to bruising from rough handling or wind damage.
• How to fix/prevent it: Handle the peppers gently during harvesting and avoid overcrowding the plants. Consider providing wind protection if your garden is exposed.

Aphids

• What it looks like: Clusters of tiny insects on stems and undersides of leaves. Sticky honeydew residue and curled or distorted new growth.
• What causes it: These sap-sucking insects thrive in warm weather and can quickly multiply.
• How to fix/prevent it: Knock them off with a strong spray of water. Encourage beneficial insects like ladybugs. Use insecticidal soap or neem oil for heavy infestations.

Blossom End Rot

• What it looks like: Sunken, dark brown or black leathery patches on the bottom of the fruit.
• What causes it: Calcium deficiency due to inconsistent watering, especially during our fluctuating weather.
• How to fix/prevent it: Water consistently and mulch heavily to maintain even soil moisture. Remove affected fruit.

Florida Specific Challenges: Our hot, humid summers and sometimes erratic rainfall patterns can create challenges for Cubanelle peppers. High humidity can increase the risk of fungal diseases, so ensure good air circulation around your plants. Our sandy soil doesn't retain water well, so consistent watering and mulching are essential.

Companion planting can give your Cubanelle peppers a boost. Plant them near tomatoes, as they enjoy similar growing conditions and can even offer some mutual protection from pests. Basil is another great companion, as it repels many common pepper pests.

Carrots and onions are also beneficial, as they don't compete for the same nutrients and can help deter pests. Avoid planting fennel and brassicas (like cabbage or broccoli) near your peppers, as they can inhibit growth or attract pests.