When to plant cauliflower in New York
New York’s average last spring frost is May 1, and the first fall frost typically arrives around October 5 — about 157 frost-free days (USDA zones 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b). Cauliflower needs 60–90 days to mature, which fits comfortably within New York's growing season.
New York covers a wide range of climates, so your exact frost dates may differ from the state average by two weeks or more. For dates tuned to your town, use the calendar generator.
When to plant cauliflower in New York: the short answer
For a spring planting, plant out Apr 10 – Apr 27, with seeds started indoors Mar 13 – Mar 27. Seeds germinate in soil from 45 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 cauliflower in New York, step by step
- Start seeds indoors (Mar 13 – Mar 27). Sow seeds ½ inch deep in seed-starting mix under bright light. They take 5-10 days to sprout, fastest in soil around 75°F. Harden seedlings off for a week before they go outside.
- Prepare the bed. It needs at least six to eight hours of direct sun a day and loose soil at least 18 inches deep, with a pH between 6.0 and 7.5. Dig in compost before planting.
- Plant out (Apr 10 – Apr 27). Space plants about 18 inches apart in rows 30 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 New York.
- Water and feed. It needs plenty of water; keep the soil evenly moist and never let it dry out.
- Watch for pests and problems. Pests: cabbage worm, cabbage looper, aphids, cabbage root maggot. Diseases and disorders: clubroot, black rot, downy mildew.
- Harvest (from about Jun 16 – Jul 16). Cauliflower takes 60-90 days to reach harvest. The fussiest brassica - any check from cold, heat, or drought ruins the head. Fall crops are far more reliable than spring. Blanch white types by tying leaves over the curd.
Figures come from our crop data; dates use New York’s average frost dates. More in the full cauliflower growing guide.
Cauliflower planting dates by USDA zone in New York
New York spans USDA zones 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b. 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 cauliflower dates shift with them.
| Zone | Last frost | First frost | Season | Start indoors | Plant cauliflower |
|---|---|---|---|---|---|
| Zone 3 | May 15 | Sep 15 | 120 days | Mar 27 – Apr 10 | Apr 24 – May 11 |
| Zone 4 | May 10 | Sep 25 | 135 days | Mar 22 – Apr 5 | Apr 19 – May 6 |
| Zone 5 | Apr 30 | Oct 5 | 160 days | Mar 12 – Mar 26 | Apr 9 – Apr 26 |
| Zone 6 | Apr 15 | Oct 15 | 185 days | Feb 25 – Mar 11 | Mar 25 – Apr 11 |
| Zone 7 | Apr 5 | Oct 25 | 200 days | Feb 15 – Mar 1 | Mar 15 – Apr 1 |
When to plant cauliflower in nearby states
| State | Last frost | Plant out |
|---|---|---|
| New York (this page) | May 1 | Apr 10 – Apr 27 |
| Maine | May 14 | Apr 23 – May 10 |
| New Hampshire | May 13 | Apr 22 – May 9 |
| Vermont | May 14 | Apr 23 – May 10 |
| Massachusetts | April 24 | Apr 3 – Apr 20 |
| Rhode Island | April 25 | Apr 4 – Apr 21 |
| Connecticut | April 25 | Apr 4 – Apr 21 |
Questions gardeners in New York ask
When is the best time to plant cauliflower in New York?
Plant cauliflower transplants outdoors in New York between April 10 and April 27. That timing is set by New York's average last spring frost of May 1; New York spans several climates, so cooler and higher parts of the state run later.
When should I start cauliflower seeds indoors in New York?
Start seeds indoors between March 13 and March 27, about 6 weeks before the last frost, so the seedlings are ready to plant out from April 10.
Can I plant cauliflower in the fall in New York?
Yes. For a fall crop, start transplants between June 26 and July 13, so the crop matures in cool weather before New York's first frost around October 5.
When will cauliflower planted in New York be ready to harvest?
Planted on time, cauliflower is usually ready from about June 16 to July 16, 60-90 days after transplanting.
When is the last frost in New York?
On average around May 1, with the first fall frost around October 5 - about 157 frost-free days. Your town may differ by two weeks or more.