When to plant bell peppers in District of Columbia
District of Columbia’s average last spring frost is April 10, and the first fall frost typically arrives around October 25 — about 198 frost-free days (USDA zones 7a, 7b, 8a). Bell Pepper needs 60–90 days to mature, which fits comfortably within District of Columbia's growing season.
When to plant bell peppers in District of Columbia: the short answer
For a spring planting, plant out Apr 17 – May 4, with seeds started indoors Feb 6 – Feb 20. Wait until the soil is at least 60°F and frost is over.
Windows are ~1–2 week bands around each date. Frost dates are a statewide average from NOAA/NCEI normals; your town may differ by two weeks or more. Calendar year 2026.
How to grow bell peppers in District of Columbia, step by step
- Start seeds indoors (Feb 6 – Feb 20). Sow seeds ¼ inch deep in seed-starting mix under bright light. They take 7-14 days to sprout, fastest in soil around 82°F. Harden seedlings off for a week before they go outside.
- Prepare the bed. They need at least six to eight hours of direct sun a day and loose soil at least 12 inches deep, with a pH between 5.5 and 7.0. Dig in compost before planting.
- Plant out (Apr 17 – May 4). Space plants about 18 inches apart in rows 30 inches apart. It is killed by frost, so nothing goes outside until the danger has passed.
- Water and feed. Give it steady, even moisture, about an inch of water a week from rain or the hose.
- Watch for pests and problems. Pests: aphids, flea beetle, pepper maggot, tomato hornworm. Diseases and disorders: bacterial leaf spot, anthracnose, blossom-end rot (calcium disorder), phytophthora blight.
- Harvest (from about Jun 23 – Jul 23). Bell Pepper takes 60-90 days to reach harvest. Needs warm soil; wait until nights stay above 55 F to transplant. Green peppers are just unripe coloured peppers left another 2-3 weeks.
Figures come from our crop data; dates use District of Columbia’s average frost dates. More in the full bell pepper growing guide.
Bell Pepper planting dates by USDA zone in District of Columbia
District of Columbia spans USDA zones 7a, 7b, 8a. Colder zones, usually higher or further inland, have a later last spring frost and an earlier first fall frost than the state average, so the bell pepper dates shift with them.
When to plant bell peppers in nearby states
| State | Last frost | Plant out |
|---|---|---|
| District of Columbia (this page) | April 10 | Apr 17 – May 4 |
| New Jersey | April 20 | Apr 27 – May 14 |
| Pennsylvania | May 1 | May 8 – May 25 |
| Delaware | April 14 | Apr 21 – May 8 |
| Maryland | April 14 | Apr 21 – May 8 |
| Virginia | April 15 | Apr 22 – May 9 |
| West Virginia | May 5 | May 12 – May 29 |
Questions gardeners in District of Columbia ask
When is the best time to plant bell peppers in District of Columbia?
Plant bell pepper transplants outdoors in District of Columbia between April 17 and May 4. That timing is set by District of Columbia's average last spring frost of April 10.
When should I start bell pepper seeds indoors in District of Columbia?
Start seeds indoors between February 6 and February 20, about 8 weeks before the last frost, so the seedlings are ready to plant out from April 17.
What is the latest I can plant bell peppers in District of Columbia?
About August 26. Bell peppers need at least 60 days to mature after transplanting, and frost around October 25 ends the season, so later plantings risk being cut short.
When will bell peppers planted in District of Columbia be ready to harvest?
Planted on time, bell peppers are usually ready from about June 23 to July 23, 60-90 days after transplanting.
When is the last frost in District of Columbia?
On average around April 10, with the first fall frost around October 25 - about 198 frost-free days. Your town may differ by two weeks or more.