Anaheim Pepper in Zone 8B — Southeast

Anaheim peppers are a fantastic addition to any Southeast garden. Their mild heat and versatility make them perfect for everything from stuffing and roasting to adding a subtle kick to your favorite Southern dishes. Plus, there's nothing quite like the satisfaction of harvesting your own peppers after nurturing them through our long summer.

We definitely have our share of gardening challenges in the Southeast, with the humidity and clay soil. But don't worry, with a little planning and the right timing, you can successfully grow Anaheim peppers. Our long growing season, typically around 255 days, gives you plenty of time to get a great harvest.

Starting Anaheim peppers indoors gives them a head start before our late-spring weather settles. Start your seeds indoors from mid January through early February, giving them about 8 weeks to grow before transplanting. You'll want to use seed trays or small pots filled with a good seed-starting mix.

Keep the trays warm, ideally around 75-80°F, and provide plenty of light with a grow light or a sunny windowsill that gets at least 6 hours of direct light. A little tip I've learned is to water from the bottom – set the tray in a shallow pan of water and let the soil soak it up. This helps prevent damping-off disease, which can be a problem with our moderate spring humidity.

Transplant your Anaheim pepper seedlings outdoors from late March through late April, once the danger of frost has passed. Before transplanting, harden off your seedlings by gradually exposing them to outdoor conditions for about a week. Start with an hour or two of indirect sunlight and increase the time each day.

Plant them 18-24 inches apart in well-drained soil. Even though we have reliable rainfall, be prepared for some temperature swings in the spring. A row cover can help protect your young plants from unexpected cool snaps.

Anaheim peppers need consistent moisture, but they don't like to be waterlogged, especially with our humid summers. A good rule of thumb is to water deeply about once a week, providing around 1 inch of water. Of course, you might need to water more often during particularly hot and dry spells.

Stick your finger about 2 inches into the soil – if it feels dry, it's time to water. Water at the base of the plant to avoid wetting the foliage, which can encourage fungal diseases in our humid climate. Signs of underwatering include wilting leaves, while overwatering can lead to yellowing leaves and root rot.

Mulching around your plants with straw or pine straw helps retain moisture and suppress weeds, which is a lifesaver during our long, hot summer. The reliable wet-summer rainfall we get will also help keep plants happy.

Anaheim peppers can get pretty tall and loaded with fruit, so providing support is a good idea. The upright growth habit means the plants can topple over. Staking is probably the easiest method.

Use sturdy stakes made of wood or bamboo, and gently tie the main stem to the stake with soft twine. Install the stakes when you transplant the seedlings to avoid disturbing the roots later. As the plant grows, continue to tie the stem to the stake as needed.

Pinching off the early flowers on your Anaheim pepper plants encourages them to focus on vegetative growth, resulting in stronger, more productive plants. Once the plant is established, let it do its thing, removing any yellowing or dead leaves as needed.

Toward the end of the season, around mid- November when our first frost is approaching, you can prune off the top growth to encourage the remaining peppers to ripen. This is standard pepper maintenance, and it's especially helpful in our region to maximize your harvest before the cold weather arrives.

You can expect your first harvest of Anaheim peppers from early June through late July, about 75 days after transplanting. You can harvest them green at 6-8 inches long for a milder flavor, or wait until they turn red for a bit more heat. The peppers should have thick walls and feel firm to the touch.

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 end of the season approaches and frost threatens, you can harvest any remaining green peppers and bring them indoors to ripen.

Here are a few common problems you might encounter with Anaheim peppers in the Southeast:

Blossom End Rot

• What it looks like: A sunken, dark brown or black leathery patch on the bottom (blossom end) of the pepper. It often affects the first fruits of the season.
• What causes it: Calcium deficiency caused by inconsistent watering. The constant cycle of afternoon thunderstorms and then hot, dry spells throws off the plant's ability to take up calcium.
• How to fix/prevent it: Water consistently, especially during dry spells. Mulch heavily to maintain even soil moisture. Avoid over-fertilizing with nitrogen. Remove any affected fruit.

Sunscald

• What it looks like: White, papery patches on the fruit exposed to direct sun. Affected areas may blister and become susceptible to rot.
• What causes it: Intense, direct sunlight on fruit, especially after leaves are removed or lost due to disease. Our intense summer sun can be brutal.
• How to fix/prevent it: Avoid over-pruning foliage. Use shade cloth during the hottest part of the day. Maintain healthy foliage to shade the fruit naturally.

Aphids

• What it looks like: Clusters of tiny soft-bodied insects (green, black, or white) on stems and leaf undersides. Sticky honeydew residue and curled or distorted new growth.
• What causes it: Rapid-reproducing sap-sucking insects. Populations explode in warm weather. They love our long, hot summer.
• How to fix/prevent it: Strong water spray to knock them off. Encourage ladybugs and lacewings (natural predators). Insecticidal soap for heavy infestations.

Southeast Specific Challenges: The hot, humid summers and wet-summer rainfall in the Southeast create a perfect environment for fungal diseases and pests. Be vigilant about watering practices, provide good air circulation, and monitor your plants regularly to catch problems early.

Companion planting can really help your Anaheim peppers thrive here in the Southeast. Tomatoes make great companions because they enjoy similar growing conditions, and they can provide some shade during the hottest part of the day. Basil is another excellent choice – it repels pests like aphids and whiteflies.

Carrots and onions are also good companions. Carrots loosen the soil, improving drainage, while onions deter pests with their strong scent. Avoid planting fennel near your peppers, as it inhibits their growth. Also, it's best to keep brassicas like cabbage and broccoli away, as they can attract pests that will also target your peppers.