Bell Peppers in Zone 8A — Southeast

Bell peppers are a Southeast garden staple for good reason. Their sweet flavor, crisp texture, and versatility in the kitchen make them a rewarding crop, especially with our long summer days fueling their growth. Plus, there's nothing like the satisfaction of harvesting a vibrant, homegrown pepper straight from your garden.

We definitely have our share of challenges here in the Southeast, from the humidity that breeds fungal diseases to the occasional pest onslaught. But with a little planning and attention to timing, you can absolutely enjoy a bountiful bell pepper harvest during our long 245-day growing season.

Starting bell peppers indoors is the way to go in the Southeast. Aim to sow your seeds from late January through mid February. This gives them about 8 weeks to get a head start before transplanting.

Use seed trays or small pots filled with a good seed-starting mix. Peppers like warmth, so keep them in a spot that's consistently around 70-75°F. A heat mat underneath the trays can be a big help. Make sure they get plenty of light once they sprout – a grow light works best, especially with our moderate spring light levels. Bottom watering is a great way to keep the soil moist without overwatering and risking damping-off.

Transplant your pepper seedlings into the garden from late March through late April, after the last expected frost. Before you plant them out, harden them off by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the sun and wind.

Space your bell pepper plants about 18-24 inches apart to give them plenty of room to grow. Keep an eye on the weather forecast around transplant time, as we can still get some cool snaps in early spring. If a late frost threatens, be ready to cover your plants.

Consistent watering is key to growing plump, thick-walled bell peppers here in the Southeast. The heat and humidity can stress plants, leading to blossom end rot or blossom drop if they don't get enough moisture. Aim for about 1-2 inches of water per week, especially during our hot summer months.

Stick your finger about 2 inches deep into the soil near the base of the plant. If it feels dry, it's time to water. Watering at the base of the plant is preferable to overhead watering, as it helps prevent fungal diseases that thrive in our humid climate.

Signs of underwatering include wilting leaves and dry soil. Overwatering can cause yellowing leaves and root rot, especially in our clay soil. A good layer of mulch, like pine straw or shredded bark, will help retain moisture and keep the soil temperature even.

Bell pepper plants can get weighed down with fruit, so providing some support is a good idea. A simple stake works wonders. Bamboo stakes or even sturdy tomato cages are perfect for keeping your pepper plants upright.

Install the supports at planting time to avoid disturbing the roots later. As the plant grows, gently tie the main stem to the stake with soft twine or plant ties. This will prevent the branches from breaking or the whole plant from toppling over, especially after those heavy afternoon thunderstorms we get.

While bell peppers don't require a lot of pruning, a few strategic cuts can improve airflow and encourage fruit production. Pinch off any early flowers that appear before the plant is well-established. This directs the plant's energy into growing a strong root system.

Remove any fruit that touches the ground, as it's more susceptible to rot. Also, prune out any crowded interior branches to improve air circulation and reduce the risk of fungal diseases. As the first frost approaches in mid- November, you can remove any remaining flowers to encourage the plant to ripen existing fruit.

You can expect your first bell pepper harvest from early June through late July, about 70 days after transplanting. The peppers are ready to harvest when they're firm and have reached a good size. They can be harvested green at the immature stage, but the flavor is sweetest when they've turned their mature color (red, yellow, or orange).

To harvest, use pruning shears or a sharp knife to cut the pepper from the plant, leaving a short stem attached. Regular harvesting encourages the plant to produce more peppers. As the first frost approaches in mid- November, harvest any remaining mature peppers. Green peppers will ripen indoors if kept in a warm place.

Bell peppers can face a few challenges in the Southeast. Here's how to tackle them:

• Blossom End Rot
• What it looks like: A dark, sunken spot on the bottom of the pepper.
• What causes it: Inconsistent watering leads to calcium deficiency. Our fluctuating rainfall patterns can make this worse.
• How to fix/prevent it: Water deeply and consistently, especially during dry spells. Mulch well to retain moisture. Remove affected fruit.
• Blossom Drop
• What it looks like: Flowers fall off without setting fruit.
• What causes it: High temperatures and humidity stress the plants. Common during our long, hot summers.
• How to fix/prevent it: Provide afternoon shade. Water deeply. Be patient – fruit set will resume when temperatures cool down.
• Aphids
• What it looks like: Tiny insects clustered on stems and undersides of leaves.
• What causes it: Warm weather and lush growth encourage aphid infestations.
• How to fix/prevent it: Blast them off with a strong stream of water. Introduce beneficial insects like ladybugs. Use insecticidal soap or neem oil.
• Sunscald
• What it looks like: White or tan patches on the pepper's surface.
• What causes it: Direct sun exposure, especially after losing leaves.
• How to fix/prevent it: Avoid over-pruning. Use shade cloth during intense heat. Ensure healthy foliage to shade the fruit.

Southeast Specific Challenges: Our hot, humid summers create ideal conditions for fungal diseases on bell peppers. Good air circulation, proper watering, and preventative fungicide applications can help. Also, keep an eye out for Japanese beetles, which can skeletonize the leaves.

Good companion plants for bell peppers in the Southeast include tomatoes, basil, carrots, onions, and spinach. Tomatoes provide shade, basil repels pests, carrots loosen the soil, onions deter insects, and spinach acts as a ground cover.

Avoid planting bell peppers near fennel, kohlrabi, or brassicas (like cabbage and broccoli). Fennel inhibits growth, while kohlrabi and brassicas compete for nutrients and attract similar pests.