🌶️ When to Plant Peppers
Start indoors 8-10 weeks before last frost
📅 Planting Calendar by USDA Zone
Peppers is a warm-season crop — plant it after your last spring frost, once the soil has warmed, and start seeds indoors a few weeks ahead for a head start. Find the exact start-indoors, transplant, and direct-sow dates for your USDA zone in the table below.
Select your zone to highlight your dates. All dates are calculated from each zone's average frost dates — see how we calculate them.
| Zone | Last Frost | Start Indoors | Transplant | Direct Sow |
|---|---|---|---|---|
| Zone 2A | May 30 | Mar 21 | Jun 13 | — |
| Zone 3B | May 15 | Mar 6 | May 29 | — |
| Zone 4A | May 8 | Feb 27 | May 22 | — |
| Zone 4B | May 1 | Feb 20 | May 15 | — |
| Zone 5A | Apr 25 | Feb 14 | May 9 | — |
| Zone 5B | Apr 18 | Feb 7 | May 2 | — |
| Zone 6A | Apr 21 | Feb 10 | May 5 | — |
| Zone 6B | Apr 10 | Jan 30 | Apr 24 | — |
| Zone 7A | Apr 5 | Jan 25 | Apr 19 | — |
| Zone 7B | Mar 28 | Jan 17 | Apr 11 | — |
| Zone 8A | Mar 20 | Jan 9 | Apr 3 | — |
| Zone 8B | Mar 12 | Jan 1 | Mar 26 | — |
| Zone 9A | Feb 28 | Dec 20 | Mar 14 | — |
| Zone 9B | Feb 15 | Dec 7 | Mar 1 | — |
| Zone 10A | Feb 1 | Nov 23 | Feb 15 | — |
| Zone 10B | Jan 15 | Nov 6 | Jan 29 | — |
| Zone 11A | Jan 1 | Oct 23 | Jan 15 | — |
Peppers love heat even more than tomatoes. Both sweet and hot varieties need warm soil, steady moisture, and plenty of sun to move from a slow, sulky start to a plant loaded with fruit. Get the transplant timing right for your zone and the rest of the season takes care of itself.
Choosing a Pepper Variety
Peppers split into two broad camps, sweet and hot, and within each camp, days-to-maturity is the lever that matters most for short seasons. Early types ripen before a cool-zone summer runs out of heat.
- Sweet bell — California Wonder is the classic blocky, thick-walled bell (about 75 days).
- Sweet specialty — Lipstick is a fast, thick-walled pimiento with outstanding flavor (about 53 days); Corno di Toro is a horn-shaped Italian frying pepper, excellent roasted (about 68 days).
- Hot — Early Jalapeño is bred for northern gardens and reliable in short seasons (about 65 days); Hungarian Wax is a productive medium-heat banana type that does well in cool summers (about 65 days); Cayenne Long Red Slim is thin, tapered, prolific, and the best cayenne for drying (about 75 days).
Short-season or cool-summer zones should lean on the early, cool-tolerant picks: Lipstick, Early Jalapeño, and Hungarian Wax. Long, warm zones can ripen the slower bells and cayenne without any trouble.
Spacing, Sun, and Soil
Give pepper plants 18 to 24 inches of space in the row, with rows spaced 24 to 36 inches apart. Bell types and other large-fruited varieties do best at the wider end of that range, since a loaded plant can topple in wind. Peppers want at least 6 to 8 hours of direct sun a day. In regions with intense afternoon heat, light shade during the hottest hours can help prevent sunscald on developing fruit.
Soil should be well-drained and rich in organic matter. Work compost into the bed before transplanting and avoid heavy clay that stays wet, since peppers are prone to root problems in soggy soil. A slightly acidic pH of 6.0 to 6.8 keeps nutrients available without tipping toward blossom end rot.
Watering
Peppers need consistent moisture, roughly 1 to 2 inches of water a week, with more during fruit set in hot weather. Uneven watering, a dry stretch followed by a heavy soak, is the most common cause of blossom end rot and split fruit. A layer of mulch around the base evens out soil moisture and cuts down on weeding.
Water at the soil line rather than overhead when you can. Wet foliage in humid weather invites fungal leaf spot, and peppers are slow enough to dry out that an evening soak can leave them damp overnight.
Top Growing Tips
- Wait until soil is 65°F or warmer before transplanting; cold soil stalls root growth for weeks
- Harden off transplants for 7 to 10 days, gradually increasing outdoor exposure, before they go in the ground
- Don’t over-fertilize with nitrogen; it produces leaves over fruit
- Pinch first flowers on young transplants to encourage bushier plants before fruit set
- Peppers prefer slightly acidic soil, pH 6.0 to 6.8
- Stake or cage tall varieties and heavy-fruited bells; loaded branches snap easily
- Harvest regularly to encourage continued production
Companion Planting
Good companions: tomatoes, basil, carrots, and onions share peppers’ preference for full sun and similar watering needs, and basil planted close by is often credited with discouraging some pepper pests.
Avoid planting near: fennel, which can inhibit the growth of many garden vegetables, and kohlrabi, which competes for the same nutrients and tends to crowd pepper roots.
Common Problems
Blossom drop. Flowers fall without setting fruit when nighttime temperatures drop below 60°F or days climb above 90°F. There’s little to do beyond waiting out the weather; fruit set resumes once temperatures settle.
Blossom end rot. A dark, sunken patch on the bottom of the fruit signals inconsistent watering, not a lack of calcium in the soil. Even, regular watering fixes it far more reliably than a calcium spray.
Sunscald. Pale, papery patches on fruit exposed to direct sun happen when foliage thins out from disease or over-pruning. Leave enough leaf cover to shade developing fruit.
Aphids. These small sap-suckers cluster on new growth and the undersides of leaves. A strong spray of water or insecticidal soap knocks back light infestations before they spread.
Harvest Timeline
Most peppers are ready 60 to 90 days after transplanting, though the exact window depends on variety. Bells and other sweet types can be picked green and firm, or left on the plant another 2 to 3 weeks to ripen fully to red, yellow, or orange, where their flavor is sweetest. Hot peppers follow the same pattern: color change signals peak flavor and heat, so a jalapeño picked green is milder than one left to ripen red.
Use scissors or pruners rather than pulling by hand. Pepper stems are brittle and snap easily, which can damage the branch. Picking regularly, rather than letting fruit sit on the plant, keeps production going through the rest of the season.
Growing peppers in your region?
These dates come from your zone's frost windows. For the full month-by-month plan — succession sowing, variety picks, and timing tuned to your climate, not just your zone — our regional vegetable-gardening guides cover your area start to finish.
Find your regional growing guide