How to Grow Peppers

Written & researched by Elena Marsh Gardening & Landscaping Editor

Updated May 2026

The short answer: to grow peppers, start seeds indoors 8 to 10 weeks before your last frost, then transplant outdoors only once nights stay above 60°F and soil is 65°F or warmer. Give them full sun, space plants 18 inches apart, water evenly at 1 to 2 inches a week, and feed with a fertilizer higher in phosphorus and potassium than nitrogen. Peppers are a warm, long-season crop that hate cold — planting them out too early is the number one reason they sit stunted for weeks.

Both sweet bells and fiery hot peppers grow the same way; hot varieties simply need more heat and a longer season. The rhythm is: get an early start indoors, wait for genuine warmth to transplant, then keep water and feeding steady. This guide walks through timing by zone, the temperature thresholds behind blossom drop, and how to feed for fruit rather than foliage.

Start seeds indoors — peppers need the head start

Because peppers need 100 to 150 days to fruit, nearly everyone starts them indoors. Sow 8 to 10 weeks before your last frost date — earlier than tomatoes, since pepper seeds germinate slowly and seedlings grow slowly at first.

1. Sow 1/4 inch deep in a sterile seed-starting mix.
2. Provide bottom heat — pepper seeds germinate best at 80 to 90°F soil, and are painfully slow below 70°F. A heat mat cuts germination from 3 weeks to about 1.
3. Give strong light as soon as they sprout, 14 to 16 hours a day under a grow light close to the seedlings.
4. Pot up to larger cells when the first true leaves form.

For the full indoor process see how to start seeds indoors, and if seedlings stretch tall and pale, the fix is in the leggy seedlings fix. Get set up with the best seed starting kit.

When to transplant outdoors, by zone

Peppers are more cold-sensitive than tomatoes. Wait until nights stay above 60°F and soil is at least 65°F — usually 2 to 3 weeks after your last frost. A pepper planted into cold soil sulks for weeks and never fully recovers, so patience genuinely pays.

Harden plants off over 7 to 10 days before transplanting — details in hardening off seedlings. Warm the soil first with black plastic mulch if your spring is cool.

Site, soil, and spacing

Give peppers at least 6 to 8 hours of full sun and rich, well-drained soil with a pH of 6.0 to 6.8. Work in plenty of compost before planting. Space plants 18 inches apart in rows 24 to 36 inches apart; peppers actually appreciate being close enough that their leaves lightly shade each other's fruit, which prevents sunscald.

Unlike tomatoes, do not bury pepper stems deep — plant them at the same depth they were in their pots, since a buried pepper stem can rot. Set a small stake or cage at planting, because a plant loaded with fruit tips over easily in wind.

Pinch early flowers to build a bigger plant

When you transplant, young peppers often already have flower buds. Pinching off this first flush of blossoms for the first week or two redirects energy into roots and foliage, producing a larger, more productive plant and a bigger total harvest over the season. If your season is short, you can skip this to get fruit sooner — but in most zones the trade favors pinching. Once the plant is established and growing strongly, let it flower and fruit freely.

Watering and mulching

Peppers want consistent moisture — about 1 to 2 inches per week — but hate wet feet. Keep the soil evenly moist and never let it swing between bone-dry and saturated, which triggers blossom end rot (a sunken dark patch on the fruit bottom). Water deeply at the base rather than lightly overhead.

A 2 to 3 inch mulch layer is one of the best things you can do for peppers: it holds moisture, buffers soil temperature, and keeps the shallow roots cool. See the best mulch for a vegetable garden roundup, and for general timing, how often to water a vegetable garden.

Feeding for fruit, not leaves

Peppers are moderate feeders with a specific need: enough nitrogen early for a healthy plant, then a shift toward phosphorus and potassium once flowering starts to drive fruit. Too much nitrogen all season gives you a lush green bush with almost no peppers.

• At planting: compost plus a balanced fertilizer worked into the soil.
• At flowering: switch to a lower-nitrogen, higher-potassium feed every 2 to 3 weeks.
• Calcium: ensure adequate calcium and steady water to prevent blossom end rot.

For products matched to the fruiting stage, see the best fertilizer for pepper plants roundup and the companion guide best fertilizer for peppers.

Why blossoms drop, and the heat problem

The most common pepper complaint is flowers that fall off without setting fruit. The cause is almost always temperature: pepper pollen becomes unviable when nights drop below 60°F or when daytime highs exceed 90°F, so blossoms drop at both extremes. This is normal and temporary — fruit set resumes when temperatures moderate.

To help through a heat wave: keep water steady, apply mulch, provide light afternoon shade with shade cloth if highs are consistently above 95°F, and gently shake the plants at midday, since peppers are self-pollinating and vibration moves pollen. Do not over-fertilize during a heat stall, which only pushes leafy growth.

Growing peppers in containers

Peppers are excellent container plants — arguably better in pots than many vegetables, because the confined roots and warm mix suit them, and you can move them to chase sun or shelter from cold. Use a 3 to 5 gallon pot for one plant (5 gallons for larger bells), with drainage holes and quality potting mix.

• One plant per pot, in the sunniest spot you have — 6 to 8 hours minimum.
• Water when the top inch dries, often daily in summer heat, but never leave the pot standing in water.
• Feed every 1 to 2 weeks once flowering, since watering leaches nutrients from the mix faster than in the ground.
• Overwinter tender perennials: peppers are technically perennials, and in cold zones you can bring a favorite plant indoors before frost, cut it back, and keep it dormant in a cool bright spot to restart next spring for a huge head start.

Compact and hot varieties do especially well in pots; large bells need the bigger 5 gallon container to size up their fruit.

Choosing sweet and hot varieties

Match the variety to your season length and heat tolerance for eating:

In short-season northern zones, stick to sweet bells and early-maturing hot peppers; the super-hots need the long, warm season of zones 7 and up, or an early indoor start and an overwintered head start, to ripen fully.

Harvesting sweet and hot peppers

You can pick peppers at any stage, but flavor and nutrition peak when fully ripe. Most peppers start green and ripen to red, yellow, orange, or purple, gaining sweetness (and, in hot peppers, heat) as they color. Green bells are simply unripe — leave them longer for sweeter colored fruit, accepting that ripening ties up the plant and slows new fruit.

Cut peppers off with pruners rather than pulling, which snaps brittle branches. Regular picking encourages the plant to keep producing until frost.

Peppers grow well alongside tomatoes and share the same warm-season timing. See when to plant tomatoes and browse the full seeds and vegetable growing hub. Our product picks come from aggregated owner reviews and expert consensus, never first-hand testing — see how we rank.