Cayenne Peppers in Zone 7A — Texas

Growing Cayenne Peppers here in Texas is rewarding. The peppers add a welcome kick to your cooking, and you can dry them for later use. Plus, there's nothing quite like the satisfaction of harvesting your own spicy peppers during our two tomato seasons.

Sure, we have to deal with the Texas heat and unpredictable weather, but starting your plants indoors and timing your transplant just right gives them a strong start. Our long, 245-day growing season means you'll have plenty of time to harvest a bumper crop.

For Cayenne Peppers, it's best to get a head start by sowing seeds indoors late January through mid February, about eight weeks before you plan to transplant them outside. Use seed trays and a good seed-starting mix. Keeping them warm and providing plenty of light will encourage germination.

Bottom watering is a great trick for seedlings. Just set the tray in a shallow dish of water and let the soil soak it up from the bottom. This helps prevent damping-off and keeps the leaves dry. Since spring comes early here, starting indoors avoids any late freezes.

Transplant your Cayenne Pepper seedlings outdoors late March through late April, after the last expected frost. Before you put them in the ground, harden them off for about a week by gradually exposing them to outdoor conditions. This gets them ready for the Texas elements.

Space the plants 18-24 inches apart in a sunny spot with well-draining soil. Keep an eye on the unpredictable weather during this time. Those late-season cold snaps can still sneak up on you.

Cayenne Peppers need moderate watering, especially with the Texas heat beating down on them. During the hottest part of the summer, you'll likely need to water them deeply a couple of times a week, maybe even more if we're in a drought.

Stick your finger about two inches into the soil. If it feels dry, it's time to water. Aim for about 1-2 inches of water per week, depending on rainfall. Watering at the base of the plant is best, especially with our variable humidity. Overhead watering can encourage fungal diseases, so avoid it if possible.

Watch for signs of underwatering, like wilting leaves, or overwatering, like yellowing leaves. A good layer of mulch around your plants helps retain moisture and keeps the soil cooler during the worst of the summer heat.

While not strictly necessary, supporting your Cayenne Pepper plants is a good idea. These plants can get tall and laden with peppers, and a little support can keep them from leaning or breaking, especially during our unpredictable storms.

A simple stake works great. Insert it into the ground near the plant at transplant time to avoid damaging the roots later. As the plant grows, gently tie the main stem to the stake with soft twine.

Pinching off the first few flowers that appear on your Cayenne Pepper plants can encourage them to put more energy into vegetative growth. This leads to stronger, more productive plants later in the season.

Do this early in the season, before the plants really get going. As the season winds down and the first frost approaches around mid- November, you can harvest any remaining peppers, even if they're still green, and let them ripen indoors.

You can expect your first Cayenne Pepper harvest early June through late July, about 70 days after transplanting. The peppers are ready when they're bright red, 4-6 inches long, and have a slight wrinkle on the skin. They should snap off the stem easily.

Harvest regularly to encourage the plant to keep producing. Just be careful not to damage the plant when you're picking the peppers. As the first frost approaches in mid- November, harvest any remaining peppers, even the green ones, and bring them inside to ripen. They'll still develop their heat and flavor.

Here are some common problems you might encounter with Cayenne Peppers in Texas:

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 is a big culprit here. Peppers don't set fruit well when nights stay above 75°F or days exceed 95°F. Low humidity, excess nitrogen, or poor pollination can also cause it.
• How to fix/prevent it: Be patient — fruit set usually resumes when temperatures moderate. Providing afternoon shade during extreme heat can help. Keep plants well-watered but avoid excess nitrogen fertilizer. You can even try hand-pollination.

Aphids

• What it looks like: Clusters of tiny soft-bodied insects (green, black, or white) on stems and leaf undersides. You might also see a sticky honeydew residue or curled/distorted new growth.
• What causes it: These sap-sucking insects reproduce rapidly, especially in warm weather. Ant colonies sometimes "farm" them for honeydew.
• How to fix/prevent it: A strong spray of water can knock them off. Encourage natural predators like ladybugs and lacewings. Insecticidal soap works well for heavy infestations, and neem oil can be used systemically. Avoid excess nitrogen fertilizer, which attracts them.

Pepper Weevils

• What it looks like: Small, dark beetles that chew holes in pepper pods, causing them to rot or drop prematurely. You might also see larvae inside the peppers.
• What causes it: Pepper weevils are a common pest in the South. They lay their eggs inside the pepper pods, and the larvae feed on the developing seeds.
• How to fix/prevent it: Remove and destroy any infested peppers. Insecticides labeled for pepper weevils can be used, but be sure to follow the instructions carefully. Crop rotation and good sanitation can also help prevent infestations.

Bacterial Spot

• What it looks like: Small, dark, water-soaked spots on leaves, stems, and fruit. The spots may have a yellow halo. Severely affected leaves may turn yellow and drop.
• What causes it: This bacterial disease thrives in warm, humid conditions and can spread quickly through splashing water.
• How to fix/prevent it: Use disease-free seeds and transplants. Avoid overhead watering. Remove and destroy any infected plants. Copper-based fungicides can help prevent the spread of the disease, but they won't cure existing infections.

Texas Specific Challenges: Our hot-to-extreme heat, variable humidity, and unpredictable rainfall can all contribute to these problems. The extreme heat can cause blossom drop, while high humidity can encourage fungal diseases like bacterial spot. And those flash floods we sometimes get can spread diseases quickly.

Tomatoes make great companions for Cayenne Peppers because they share similar growing requirements and can provide some shade during the hottest part of the day. Basil is another good choice because it repels some common pepper pests. Carrots and onions can also be beneficial, as they help to improve the soil and deter pests.

Avoid planting fennel or kohlrabi near your Cayenne Peppers. Fennel can inhibit the growth of many plants, while kohlrabi can attract pests that also affect peppers. Keeping these plants separate will help your peppers thrive in our Texas gardens.