When to plant pumpkins 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). Pumpkin needs 90–120 days to mature, which fits comfortably within District of Columbia's growing season.
When to plant pumpkins in District of Columbia: the short answer
For a spring planting, plant out Apr 10 – Apr 27, with seeds started indoors Mar 13 – Mar 27. Wait until the soil is at least 60°F and frost is over. For Halloween, count back 90–120 days from October 25: sow by Jun 27–Jul 27. See the Halloween plan.
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 pumpkins in District of Columbia, step by step
- Start seeds indoors (Mar 13 – Mar 27). Sow seeds 1 inch deep in seed-starting mix under bright light. They take 5-10 days to sprout, fastest in soil around 85°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 18 inches deep, with a pH between 5.5 and 7.5. Dig in compost before planting.
- Plant out (Apr 10 – Apr 27). Space plants about 48 inches apart in rows 96 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: squash vine borer, squash bug, striped cucumber beetle. Diseases and disorders: powdery mildew, bacterial wilt.
- Harvest (from about Jul 16 – Aug 15). Pumpkin takes 90-120 days to reach harvest. For Halloween pumpkins in the north, count back 100-120 days from 31 Oct and start indoors. Mini varieties can climb a strong trellis.
Figures come from our crop data; dates use District of Columbia’s average frost dates. More in the full pumpkin growing guide.
Planting pumpkins in District of Columbia for Halloween
Spring dates above suit a long season. If you want fruit ready for Halloween, count back from District of Columbia's average first fall frost (October 25), which comes before Halloween. Pumpkin takes 90–120 days from sowing to a mature fruit, so these are the latest sowing dates. Sow earlier for a margin, but not too early: the University of Arkansas Extension warns that pumpkins planted too early may rot before Halloween.
| Days to maturity | Latest sowing for Halloween | Typical for |
|---|---|---|
| 120 days | June 27 | slowest types (giants) |
| 100 days | July 17 | jack-o'-lantern and pie types (University of Arkansas variety table) |
| 90 days | July 27 | quickest types |
See the full growing guide for pumpkin. Days to maturity vary by variety, so check the seed packet.
Pumpkin 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 pumpkin dates shift with them.
When to plant pumpkins in nearby states
| State | Last frost | Plant out |
|---|---|---|
| District of Columbia (this page) | April 10 | Apr 10 – Apr 27 |
| New Jersey | April 20 | Apr 20 – May 7 |
| Pennsylvania | May 1 | May 1 – May 18 |
| Delaware | April 14 | Apr 14 – May 1 |
| Maryland | April 14 | Apr 14 – May 1 |
| Virginia | April 15 | Apr 15 – May 2 |
| West Virginia | May 5 | May 5 – May 22 |
Questions gardeners in District of Columbia ask
When is the best time to plant pumpkins in District of Columbia?
Plant pumpkin transplants outdoors in District of Columbia between April 10 and April 27. That timing is set by District of Columbia's average last spring frost of April 10.
When should I start pumpkin seeds indoors in District of Columbia?
Start seeds indoors between March 13 and March 27, about 3 weeks before the last frost, so the seedlings are ready to plant out from April 10.
What is the latest I can plant pumpkins in District of Columbia?
About July 27. Pumpkins need at least 90 days to mature, and frost around October 25 ends the season, so later plantings risk being cut short. If you want ripe fruit for Halloween, the cut-off is earlier: see the Halloween dates on this page.
When will pumpkins planted in District of Columbia be ready to harvest?
Planted on time, pumpkins are usually ready from about July 16 to August 15, 90-120 days after planting.
When should I plant pumpkins in District of Columbia for Halloween?
Count back 90-120 days from October 25, District of Columbia's average first fall frost, which comes before Halloween: the latest sowing dates are June 27 to July 27. Sow a little earlier for a margin.
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.