When to plant spinach in Nebraska
Nebraska’s average last spring frost is April 30, and the first fall frost typically arrives around October 5 — about 158 frost-free days (USDA zones 4b, 5a, 5b). Spinach needs 37–45 days to mature, which fits comfortably within Nebraska's growing season.
When to plant spinach in Nebraska: the short answer
For a spring planting, sow Mar 21 – Apr 9. Seeds germinate in soil from 35 to 75°F.
Succession sow again in Nebraska: Apr 7 · Apr 19 · May 1 · May 13 · May 25
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 spinach in Nebraska, step by step
- 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.
- Sow outdoors (Mar 21 – Apr 9). Space plants about 4 inches apart in rows 12 inches apart, sowing seed ½ inch deep. It tolerates hard frost, so it is one of the first crops to plant. As a cool-season crop it does best before summer heat arrives in Nebraska.
- 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: downy mildew, white rust, damping off.
- Harvest (from about May 2 – May 10). Spinach takes 37-45 days to reach harvest. Bolts fast in heat and long days - it is really a spring and fall crop. A late-fall sowing under row cover often overwinters for an early-spring cut.
Figures come from our crop data; dates use Nebraska’s average frost dates. More in the full spinach growing guide.
Spinach planting dates by USDA zone in Nebraska
Nebraska spans USDA zones 4b, 5a, 5b. 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 spinach dates shift with them.
When to plant spinach in nearby states
| State | Last frost | Sow |
|---|---|---|
| Nebraska (this page) | April 30 | Mar 21 – Apr 9 |
| North Dakota | May 15 | Apr 5 – Apr 24 |
| South Dakota | May 10 | Mar 31 – Apr 19 |
| Kansas | April 15 | Mar 6 – Mar 25 |
| Oklahoma | April 1 | Feb 20 – Mar 11 |
Questions gardeners in Nebraska ask
When is the best time to plant spinach in Nebraska?
Sow spinach in Nebraska between March 21 and April 9. That timing is set by Nebraska's average last spring frost of April 30.
Can I plant spinach in the fall in Nebraska?
Yes. For a fall crop, sow between August 7 and August 24, so the crop matures in cool weather before Nebraska's first frost around October 5.
When will spinach planted in Nebraska be ready to harvest?
Planted on time, spinach is usually ready from about May 2 to May 10, 37-45 days after sowing.
When is the last frost in Nebraska?
On average around April 30, with the first fall frost around October 5 - about 158 frost-free days. Your town may differ by two weeks or more.