Pepperoncini in Zone 8B — Florida

Pepperoncini peppers are a fantastic addition to any Florida garden. Their mild, slightly sweet flavor makes them incredibly versatile for pickling, salads, or adding a little zing to your homemade pizzas. Plus, growing your own gives you the satisfaction of harvesting fresh peppers even as summer rolls around.

Our Florida gardening calendar is different, with summer being more of a slow season. But don't let our humidity and sandy soil scare you off! By starting your pepperoncini early, you'll be enjoying a great harvest before the worst of the summer heat hits. Our long growing season of 303 days gives you plenty of time to succeed.

To get a jump start on the season, begin your pepperoncini seeds indoors from late December through mid January. This gives them about 8 weeks to get a good head start before transplanting. Use seed trays filled with a good seed-starting mix.

Keep the trays warm and provide plenty of light – a grow light works wonders. A little tip I've found helpful here in Florida is to water from the bottom. Set the tray in a shallow dish of water and let the soil soak it up; this prevents damping-off disease that thrives in our humid conditions. Remember, our spring here in Florida is reversed, so starting early is key.

Once the weather starts to warm up, usually from early to late March, it's time to transplant your pepperoncini seedlings outdoors. Before planting them directly in the ground, harden them off by gradually exposing them to the outdoor elements for about a week. This prevents transplant shock.

Plant your pepperoncini seedlings 18-24 inches apart in a sunny spot with well-draining soil. Even though it's getting warmer, watch out for late cold snaps that sometimes hit us in early spring. If a freeze is predicted, cover your plants with a frost blanket.

Pepperoncini peppers need consistent moisture, but they don't like to be waterlogged, especially with our high humidity. Aim to give them about 1 inch of water per week, adjusting for rainfall. During our drier spring months, you'll need to water more frequently than during our wet-summer season.

The "finger test" is your friend. Stick your finger about 2 inches deep into the soil. If it feels dry, it's time to water. Water at the base of the plant to avoid getting the leaves wet, which can encourage fungal diseases in our humid climate.

Slightly wrinkled skin on the peppers is normal and not necessarily a sign of underwatering. Overwatering can lead to root rot, so err on the side of slightly drier rather than constantly wet. A good layer of mulch, like pine straw, will help retain moisture and suppress weeds.

Pepperoncini plants are generally compact and bushy, so they rarely need support. However, if your plants become heavily laden with peppers, especially after a good rain, they might benefit from a little help.

A simple tomato cage or sturdy stakes work well. Install the support at planting time to avoid disturbing the roots later. Gently tie the branches to the support as needed to keep them from bending or breaking.

Pruning pepperoncini is pretty straightforward. Pinch off any early flowers that appear before the plant is a foot tall. This encourages the plant to focus on vegetative growth, resulting in a stronger, more productive plant later on.

As the season progresses, harvest peppers frequently to encourage continued production. As we approach our first frost around mid- December, remove any remaining flowers so the plant focuses on ripening existing peppers.

You can expect your first pepperoncini harvest from mid May through late June, about 72 days after transplanting. The peppers are ready to harvest when they are yellow-green and about 2-3 inches long if you plan to pickle them. If you prefer them red, let them fully mature on the vine.

To harvest, use sharp pruners or scissors to cut the peppers from the plant, leaving a small stem attached. Be careful not to damage the surrounding branches. Frequent harvesting encourages the plant to keep producing.

As our first frost approaches in mid- December, harvest all remaining peppers, even the green ones. Green peppers will ripen indoors if stored in a paper bag with an apple or banana. This releases ethylene gas, which speeds up the ripening process.

Here are a few common problems you might encounter with pepperoncini in Florida:

Over-ripening

• What it looks like: Peppers become soft, wrinkled, and develop dark spots. They may also start to rot on the vine.
• What causes it: Peppers are left on the plant too long after reaching maturity. Our warm, humid conditions can accelerate the process.
• How to fix/prevent it: Harvest peppers regularly as they ripen. Check your plants every few days and pick any that are ready.

Aphids

• What it looks like: Clusters of tiny soft-bodied insects (green, black, or white) on stems and leaf undersides. Sticky honeydew residue. Curled or distorted new growth.
• What causes it: Rapid-reproducing sap-sucking insects. Populations explode in warm weather. Ant colonies may farm them for honeydew.
• How to fix/prevent it: Strong water spray knocks them off. Encourage ladybugs and lacewings (natural predators). Insecticidal soap for heavy infestations. Neem oil works systemically. Avoid excess nitrogen fertilizer (it attracts them).

Blossom Drop

• What it looks like: Flowers fall off without setting fruit. Small fruit yellows and drops. Plant looks healthy but produces no fruit.
• What causes it: Temperature stress. Peppers and tomatoes don't set fruit well when nights stay above 75°F or days exceed 95°F. Also caused by low humidity, excess nitrogen, or poor pollination.
• How to fix/prevent it: Be patient — fruit set resumes when temperatures moderate. Provide afternoon shade during extreme heat. Keep plants well-watered. Avoid excess nitrogen. Try hand-pollination.

Florida Specific Challenges: Our hot, humid summers and wet-summer rainfall can create an ideal environment for fungal diseases, so be vigilant about watering at the base of the plant and providing good air circulation. Nematodes can also be a problem in our sandy soil, so consider using nematode-resistant varieties or amending your soil with organic matter.

Companion planting can be a great way to improve the health and productivity of your pepperoncini plants. Tomatoes make excellent companions because they share similar growing requirements and can provide some shade during the hottest part of the day. Basil is another good choice, as it repels many common pests and attracts beneficial insects.

Carrots and onions also work well, as they help to deter soil pests like nematodes. Avoid planting pepperoncini near fennel or brassicas like cabbage and broccoli. Fennel inhibits the growth of many plants, while brassicas can attract pests that also affect peppers.