When to plant swiss chard in Alabama
Alabama’s average last spring frost is March 25, and the first fall frost typically arrives around November 5 — about 225 frost-free days (USDA zones 7b, 8a, 8b, 9a). Swiss Chard needs 50–60 days to mature, which fits comfortably within Alabama's growing season.
When to plant swiss chard in Alabama: the short answer
For a spring planting, plant out Mar 4 – Mar 21, with seeds started indoors Feb 18 – Mar 4. 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 Alabama, step by step
- Start seeds indoors (Feb 18 – Mar 4). 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 (Mar 4 – Mar 21). 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 Alabama.
- 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 Apr 30 – May 10). 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 Alabama’s average frost dates. More in the full swiss chard growing guide.
Swiss Chard planting dates by USDA zone in Alabama
Alabama spans USDA zones 7b, 8a, 8b, 9a. 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 |
|---|---|---|
| Alabama (this page) | March 25 | Mar 4 – Mar 21 |
| Mississippi | March 20 | Feb 27 – Mar 16 |
| Louisiana | March 5 | Feb 12 – Mar 1 |
| Florida | February 12 | Jan 22 – Feb 8 |
| Arkansas | April 3 | Mar 13 – Mar 30 |
Questions gardeners in Alabama ask
When is the best time to plant swiss chard in Alabama?
Plant swiss chard transplants outdoors in Alabama between March 4 and March 21. That timing is set by Alabama's average last spring frost of March 25.
When should I start swiss chard seeds indoors in Alabama?
Start seeds indoors between February 18 and March 4, about 4 weeks before the last frost, so the seedlings are ready to plant out from March 4.
Can I plant swiss chard in the fall in Alabama?
Yes. For a fall crop, sow between August 17 and September 3, so the crop matures in cool weather before Alabama's first frost around November 5.
When will swiss chard planted in Alabama be ready to harvest?
Planted on time, swiss chard is usually ready from about April 30 to May 10, 50-60 days after planting.
When is the last frost in Alabama?
On average around March 25, with the first fall frost around November 5 - about 225 frost-free days. Your town may differ by two weeks or more.