When to plant beets in Oklahoma
Oklahoma’s average last spring frost is April 1, and the first fall frost typically arrives around November 1 — about 214 frost-free days (USDA zones 6b, 7a, 7b, 8a). Beet needs 50–70 days to mature, which fits comfortably within Oklahoma's growing season.
When to plant beets in Oklahoma: the short answer
For a spring planting, sow Feb 27 – Mar 18. Seeds germinate in soil from 45 to 85°F.
Succession sow again in Oklahoma: Mar 22 · Apr 9 · Apr 27
Spring succession stops before summer heat makes it bolt. Start sowing again in late summer for a fall crop (see the fall window above).
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 beets in Oklahoma, step by step
- Prepare the bed. They need 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.
- Sow outdoors (Feb 27 – Mar 18). Space plants about 4 inches apart in rows 12 inches apart, sowing seed 0.75 inch deep. It handles frost well, so it can go out before the last frost date. As a cool-season crop it does best before summer heat arrives in Oklahoma.
- 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, flea beetle, aphids. Diseases and disorders: cercospora leaf spot, scab, damping off.
- Harvest (from about Apr 23 – May 13). Beet takes 50-70 days to reach harvest. Each wrinkled 'seed' is a cluster of 2-4 seedlings - thin to one or transplant the extras while tiny. Thinnings are edible greens.
Figures come from our crop data; dates use Oklahoma’s average frost dates. More in the full beet growing guide.
Beet planting dates by USDA zone in Oklahoma
Oklahoma spans USDA zones 6b, 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 beet dates shift with them.
When to plant beets in nearby states
| State | Last frost | Sow |
|---|---|---|
| Oklahoma (this page) | April 1 | Feb 27 – Mar 18 |
| North Dakota | May 15 | Apr 12 – May 1 |
| South Dakota | May 10 | Apr 7 – Apr 26 |
| Nebraska | April 30 | Mar 28 – Apr 16 |
| Kansas | April 15 | Mar 13 – Apr 1 |
Questions gardeners in Oklahoma ask
When is the best time to plant beets in Oklahoma?
Sow beets in Oklahoma between February 27 and March 18. That timing is set by Oklahoma's average last spring frost of April 1.
Can I plant beets in the fall in Oklahoma?
Yes. For a fall crop, sow between August 20 and September 6, so the crop matures in cool weather before Oklahoma's first frost around November 1.
When will beets planted in Oklahoma be ready to harvest?
Planted on time, beets are usually ready from about April 23 to May 13, 50-70 days after sowing.
When is the last frost in Oklahoma?
On average around April 1, with the first fall frost around November 1 - about 214 frost-free days. Your town may differ by two weeks or more.