Anaheim Pepper in Zone 6B — Northeast

Anaheim peppers are a fantastic choice for Northeast gardens. Their mild heat and thick walls make them perfect for stuffing, roasting, or adding a subtle kick to your favorite dishes. Plus, those cool nights we often get here in the summer really seem to intensify their flavor.

Our short growing season and occasional late frosts definitely present a challenge, but with a little planning, you can absolutely enjoy a bountiful harvest of Anaheim peppers. We have about 183 days to work with, and starting your plants indoors is the key to success.

Get a head start on the season by starting your Anaheim pepper seeds indoors from late February through mid March, about 8 weeks before you plan to transplant them outdoors. Use seed trays or small pots filled with a good seed-starting mix. Keep the soil consistently moist, but not soggy.

Provide warmth – a heat mat underneath the trays speeds up germination. Once the seedlings emerge, make sure they get plenty of light. A grow light is ideal, especially with our often-cloudy springs. Water from the bottom to encourage strong root growth and prevent damping-off.

Remember, spring can be late in the Northeast. Don't be tempted to rush things!

Transplant your Anaheim pepper seedlings outdoors from late April through late May, once the danger of frost has passed and the soil has warmed up. Before planting them in the ground, harden them off by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the sun and wind.

Choose a sunny spot with well-drained soil. Space the plants 18-24 inches apart. Even though we're past the average last frost date, keep an eye on the forecast – a late cold snap can still happen.

Anaheim peppers need consistent moisture, but they don't like to sit in soggy soil, which is easy to do with our moderate-to-humid summers. Aim for moderate watering throughout the growing season. Feel the soil about two inches deep – if it's dry, it's time to water.

During the hottest parts of summer, your plants might need about an inch of water per week, either from rainfall or irrigation. Water at the base of the plant to avoid wetting the foliage, which can increase the risk of fungal diseases in our humid climate.

Signs of underwatering include wilting leaves and stunted growth. Overwatering can lead to yellowing leaves and root rot. Mulching around the plants helps retain moisture and regulate soil temperature.

Anaheim pepper plants can get quite tall and produce a lot of long, heavy fruit. Consider providing support to prevent the branches from breaking. Staking is a great option.

Install the stakes when you transplant the seedlings, positioning them close to the main stem. As the plant grows, gently tie the branches to the stakes with soft twine. This helps keep the plant upright and prevents the fruit from touching the ground.

Pinching off the early flowers on your Anaheim pepper plants can encourage them to focus their energy on vegetative growth, leading to stronger plants and a bigger harvest later in the season. Do this early in the season, before the plants start setting fruit.

Throughout the season, remove any yellowing or dead leaves. As we approach the first frost in mid- October, you can remove any small, late-forming peppers to encourage the plant to put its energy into ripening the larger ones.

You can expect your first harvest of Anaheim peppers from mid July through late August, about 75 days after transplanting. Harvest them when they are 6-8 inches long and green for a milder flavor, or wait until they turn red for a bit more heat. The walls should feel thick.

Use pruning shears or a sharp knife to cut the peppers from the plant, leaving a short stem attached. Regular harvesting encourages continued production. As the first frost approaches in mid- October, harvest all remaining peppers, even the green ones.

Green Anaheim peppers will ripen indoors if you store them in a paper bag with an apple or banana. The ethylene gas produced by the fruit helps them ripen.

Here are some common problems you might encounter growing Anaheim peppers in the Northeast:

Blossom End Rot

• What it looks like: A sunken, dark brown or black leathery patch on the bottom of the fruit.
• What causes it: Calcium deficiency caused by inconsistent watering. In our climate, this often happens during periods of heavy rain followed by dry spells.
• How to fix/prevent it: Water consistently, especially during dry periods. Mulch heavily to maintain even soil moisture. Avoid over-fertilizing with nitrogen. Remove affected fruit.

Sunscald

• What it looks like: White, papery patches on fruit exposed to direct sun.
• What causes it: Intense, direct sunlight on fruit, often after foliage has been removed or lost to disease.
• How to fix/prevent it: Don't over-prune foliage. Use shade cloth during periods of extreme heat. If fruit is already exposed, drape a small piece of row cover over it.

Aphids

• What it looks like: Clusters of tiny 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 can explode during our warm, humid summers.
• How to fix/prevent it: Spray them off with a strong stream of water. Encourage ladybugs and lacewings. Use insecticidal soap for heavy infestations.

Northeast Specific Challenges: Our moderate heat and humidity can create conditions that favor fungal diseases. Monitor your plants regularly and take steps to improve air circulation. Consistent rainfall is usually a blessing, but it can also lead to inconsistent watering if you're not careful.

Companion planting can be beneficial for Anaheim peppers in the Northeast. Tomatoes make great companions because they share similar growing requirements and can help provide shade. Basil repels pests and improves the flavor of peppers. Carrots loosen the soil and attract beneficial insects. Onions deter aphids and other pests.

Avoid planting fennel near Anaheim peppers, as it inhibits their growth. Brassicas, like cabbage and broccoli, can compete for nutrients and attract pests that also affect peppers. By choosing the right companions, you can create a thriving and productive garden.