How to Grow Bell Pepper

Growing guide

Overview

Bell pepper is a warm-season vegetable grown for its thick-walled, sweet fruits that start green and ripen to red, yellow, orange, or other colors. Growers value it for fresh eating, roasting, and freezing, but it needs consistent warmth, full sun, and even moisture to produce well.

Soil & planting prep

Plant in loamy, sandy, well-drained soil rich in organic matter, with a pH around 6.0-6.8. Space transplants 18-24 inches apart in rows 24-36 inches apart, setting them at the same depth they grew in their pots.

When to plant

Start seeds indoors 8 weeks before your last average frost date. Transplant only after the last frost has passed and soil has warmed, typically when nighttime temperatures stay above 55°F (13°C); peppers are not frost-tolerant and will stall in cold soil.

How to plant

1. Start seeds indoors 8 weeks before your last frost date, sowing them about 1/4 inch deep in warm, moist seed-starting mix.
2. Keep seed trays at about 80-90°F (27-32°C) until germination, then grow seedlings under bright light and transplant to larger cells as needed.
3. Begin hardening off seedlings 7-10 days before transplanting by gradually exposing them to outdoor sun and wind.
4. After the last frost, plant transplants 18-24 inches apart in full sun, setting them at the same depth as their containers in loamy, well-drained soil.
5. Water transplants in well, apply mulch to keep soil moisture even, and once flowering starts, side-dress with a low-nitrogen fertilizer.

5 common mistakes to avoid

• Planting peppers outside too early while soil is still cold - peppers are frost-tender and cold soil causes stunted roots and drop of early flowers; wait until after the last frost and soil has warmed above 60°F (16°C).
• Feeding peppers too much nitrogen - high-nitrogen fertilizer pushes leaf growth instead of fruit; switch to a low-nitrogen or balanced fertilizer once flowering begins.
• Letting soil dry out between waterings during bloom and fruit set - drought stress causes blossom drop and small fruit; keep soil evenly moist and mulch around plants.
• Skipping hardening off - moving indoor seedlings straight into full sun and wind shocks the plants and delays growth by weeks; harden them off over 7-10 days.
• Not supporting loaded plants - bell pepper branches can crack or break under a heavy fruit load; stake or cage plants when fruit begins to size up.

Harvesting & storage

Bell peppers are ready about 70-90 days after transplanting when fruits are full size, firm, and glossy. Harvest green for classic flavor or leave them on the plant to ripen to red, yellow, or orange for sweeter fruit. Cut fruits off with pruners or a sharp knife, leaving a short stem attached, and store unwashed in the refrigerator crisper for up to 1-2 weeks.

Companion planting

Good companions include basil, onions, carrots, and marigolds. Avoid planting bell peppers near fennel, which can inhibit their growth.

Growing in containers

Bell peppers grow well in containers; use at least a 3-gallon pot with drainage holes per plant, and use a quality potting mix. Check container soil more often because pots dry out faster than garden beds.

Pro tips

Start indoors 8-10 weeks before last frost — peppers are slow to establish. They thrive in heat and dislike cold soil. Feed with low-nitrogen fertiliser once flowering begins.