When to plant swiss chard in West Virginia
West Virginia’s average last spring frost is May 5, and the first fall frost typically arrives around October 5 — about 153 frost-free days (USDA zones 5b, 6a, 6b, 7a). Swiss Chard needs 50–60 days to mature, which fits comfortably within West Virginia's growing season.
When to plant swiss chard in West Virginia: the short answer
For a spring planting, plant out Apr 14 – May 1, with seeds started indoors Mar 31 – Apr 14. Seeds germinate in soil from 40 to 85°F.
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 swiss chard in West Virginia, step by step
- Start seeds indoors (Mar 31 – Apr 14). Sow seeds 0.75 inch deep in seed-starting mix under bright light. They take 5-14 days to sprout, fastest in soil around 70°F. Harden seedlings off for a week before they go outside.
- Prepare the bed. It needs six or more hours of sun for the best growth, though four to six hours in partial shade is enough and loose soil at least 12 inches deep, with a pH between 6.0 and 7.5. Dig in compost before planting.
- Plant out (Apr 14 – May 1). Space plants about 9 inches apart in rows 18 inches apart. It tolerates a light frost but not a hard freeze. As a cool-season crop it does best before summer heat arrives in West Virginia.
- 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: leaf miner, aphids, flea beetle. Diseases and disorders: cercospora leaf spot, downy mildew.
- Harvest (from about Jun 10 – Jun 20). Swiss Chard takes 50-60 days to reach harvest. One of the most heat-tolerant leafy greens - a single spring sowing usually carries through summer into fall if kept picked.
Figures come from our crop data; dates use West Virginia’s average frost dates. More in the full swiss chard growing guide.
Swiss Chard planting dates by USDA zone in West Virginia
West Virginia spans USDA zones 5b, 6a, 6b, 7a. 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 swiss chard dates shift with them.
When to plant swiss chard in nearby states
| State | Last frost | Plant out |
|---|---|---|
| West Virginia (this page) | May 5 | Apr 14 – May 1 |
| New Jersey | April 20 | Mar 30 – Apr 16 |
| Pennsylvania | May 1 | Apr 10 – Apr 27 |
| Delaware | April 14 | Mar 24 – Apr 10 |
| Maryland | April 14 | Mar 24 – Apr 10 |
| District of Columbia | April 10 | Mar 20 – Apr 6 |
| Virginia | April 15 | Mar 25 – Apr 11 |
Questions gardeners in West Virginia ask
When is the best time to plant swiss chard in West Virginia?
Plant swiss chard transplants outdoors in West Virginia between April 14 and May 1. That timing is set by West Virginia's average last spring frost of May 5.
When should I start swiss chard seeds indoors in West Virginia?
Start seeds indoors between March 31 and April 14, about 4 weeks before the last frost, so the seedlings are ready to plant out from April 14.
Can I plant swiss chard in the fall in West Virginia?
Yes. For a fall crop, sow between July 17 and August 3, so the crop matures in cool weather before West Virginia's first frost around October 5.
When will swiss chard planted in West Virginia be ready to harvest?
Planted on time, swiss chard is usually ready from about June 10 to June 20, 50-60 days after planting.
When is the last frost in West Virginia?
On average around May 5, with the first fall frost around October 5 - about 153 frost-free days. Your town may differ by two weeks or more.