Bell Peppers in Zone 7A — Southeast

Bell Peppers are a rewarding crop for the Southeast garden. Their sweet flavor and crisp texture elevate everything from summer salads to grilled kabobs, and there's nothing quite like the satisfaction of harvesting peppers you've grown yourself in your own backyard. Plus, they thrive in our long summer and reliable rainfall.

Our hot and humid summers can present some challenges, but with careful timing and attention, you can easily overcome them. The 225-day growing season gives you plenty of time to bring in a bumper crop of Bell Peppers.

To get a head start on the season, start your Bell Pepper seeds indoors in early to late February. This gives them about 8 weeks to develop before transplanting. Use seed trays or small pots filled with a good seed-starting mix.

Keep the soil consistently moist (but not soggy) by bottom watering. Place the tray in a shallow pan of water until the surface of the soil is damp. Maintain a temperature of around 75-80°F for germination, using a heat mat if needed. Once seedlings emerge, provide plenty of light with a grow light or a sunny windowsill. With our moderate spring, starting indoors is the way to go.

Transplant your Bell Pepper seedlings outdoors from early April through early May, once the danger of frost has passed. Before transplanting, harden off the seedlings by gradually exposing them to outdoor conditions for about a week. This will help them adjust to the sun and wind.

Choose a sunny spot in your garden with well-drained soil. Space the plants 18-24 inches apart. If we happen to get a late cold snap (it happens!), be ready to cover your transplants.

Bell Peppers need consistent moisture to produce thick-walled, juicy fruit. In our hot, humid Southeast climate, watering can be a bit of a balancing act. The goal is to keep the soil consistently moist, but not waterlogged, to avoid fungal issues.

During the hotter parts of the summer, you'll likely need to water deeply about 1-2 times per week, providing about 1-2 inches of water each time. Use the "finger test" to check soil moisture: stick your finger about 2 inches into the soil near the base of the plant. If it feels dry, it's time to water. Water at the base of the plant rather than overhead to reduce humidity around the leaves and minimize disease pressure.

Pay attention to your plants. If the leaves are wilting even in the morning, they're likely underwatered. Yellowing leaves or stunted growth can indicate overwatering. A good layer of mulch, such as pine straw or shredded leaves, will help retain moisture and suppress weeds.

Bell Pepper plants can get quite heavy with fruit, and the branches can sometimes break or bend to the ground. While not strictly necessary, providing support can help prevent this.

A simple stake is usually sufficient. Insert a sturdy stake near the plant at planting time and gently tie the main stem to the stake as the plant grows. Soft twine or strips of cloth work well for tying. This will keep the plant upright and prevent the fruit from touching the soil.

Bell Peppers benefit from some light pruning throughout the growing season. Pinch off any early flowers that appear before the plant is about a foot tall to encourage more vegetative growth.

Remove any fruit that touches the ground, as this can lead to rot. Prune out any interior branches that are crowded or crossing to improve airflow and reduce humidity within the plant. As the season winds down in late fall (first frost comes around early November), you can remove any new flowers that won't have time to mature before frost.

You can expect your first harvest of Bell Peppers from mid-June through early August, about 70 days after transplanting. Peppers can be harvested at any stage of maturity, but the flavor is sweetest when they are fully colored (red, yellow, or orange).

To harvest, use sharp pruners or a knife to cut the pepper from the plant, leaving a short piece of stem attached. Regular harvesting encourages the plant to produce more fruit. As frost approaches in early November, harvest any remaining green peppers. They can be ripened indoors in a paper bag with an apple or banana.

Bell Peppers can encounter a few problems in the Southeast garden, but these are generally manageable with good cultural practices.

Blossom End Rot

• What it looks like: A sunken, dark brown or black leathery patch on the bottom of the fruit. Often affects the first fruits of the season.
• What causes it: Calcium deficiency caused by inconsistent watering. The clay soil in our region can make drainage tricky, leading to fluctuations in soil moisture.
• How to fix/prevent it: Water consistently, especially during dry spells. Mulch heavily to maintain even soil moisture. Avoid over-fertilizing with nitrogen, which can exacerbate the problem.

Blossom Drop

• What it looks like: Flowers fall off the plant without setting fruit. Small fruit yellows and drops.
• What causes it: Temperature stress. Bell Peppers don't set fruit well when nights stay above 75°F or days exceed 95°F. This is common during our hottest summer months.
• How to fix/prevent it: Be patient — fruit set usually resumes when temperatures moderate. Provide afternoon shade during extreme heat. Keep plants well-watered.

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. They thrive in warm weather.
• How to fix/prevent it: Strong water spray knocks them off. Encourage ladybugs and lacewings (natural predators). Insecticidal soap for heavy infestations.

Sunscald

• What it looks like: White, papery patches on fruit exposed to direct sun. Affected areas may blister and become susceptible to rot.
• What causes it: Intense, direct sunlight on fruit, usually after leaves are removed or lost to disease.
• How to fix/prevent it: Don't over-prune foliage. Use shade cloth in extreme heat. Maintain healthy foliage to shade fruit naturally.

Southeast Specific Challenges: Our hot and humid climate creates ideal conditions for fungal diseases, so be sure to provide good air circulation around your plants. Japanese beetles can also be a nuisance, so be vigilant about hand-picking them off your plants. Deer can also be a problem, so consider fencing or using deer repellent.

Companion planting can help your Bell Peppers thrive in the Southeast garden. Tomatoes are excellent companions, as they share similar growing requirements and can provide some shade for the peppers during the hottest part of the day. Basil helps repel pests and improves the flavor of both peppers and tomatoes. Carrots and onions can deter soil-borne pests. Spinach, planted nearby, helps to suppress weeds and retain moisture in the soil.

Avoid planting Bell Peppers near fennel, kohlrabi, or other brassicas (cabbage, broccoli, etc.). Fennel inhibits the growth of many plants, while kohlrabi and brassicas can attract pests that also affect peppers.