🥒When to Plant Cucumber (2026)
Fast and productive once soil is warm. Sow directly after frost.
- Type: Warm-season
- Method: Direct sow or transplant
- Days to harvest: 55
- Spacing: 12" apart
- Sun: Full sun (6-8h)
- Companions: beans, corn, radish
Is Cucumber right for your USDA zone?
Cucumber is a warm-season crop that needs frost-free weather and warm soil to thrive. Gardeners in zones 5b through 10b have the longest cucumber season. In cooler zones (3a-5a), choose fast-maturing varieties (45 days or less) and start seeds indoors to extend your window. In hot zones (9a-10b), cucumber may struggle in peak summer — consider planting in February-March for a spring crop before the heat.
Cucumber needs about 55 days from sowing to harvest, so any zone with at least 69frost-free days can grow it successfully. Check your zone's specific dates in the table below.
Cucumber planting dates by zone (2026)
| Zone | Start Indoors | Sow / Transplant | Harvest From |
|---|---|---|---|
| Zone 3a | Apr 24 | May 29 | Jul 23 |
| Zone 3b | Apr 24 | May 29 | Jul 23 |
| Zone 4a | Apr 19 | May 24 | Jul 18 |
| Zone 4b | Apr 14 | May 19 | Jul 13 |
| Zone 5a | Apr 9 | May 14 | Jul 8 |
| Zone 5b | Apr 4 | May 9 | Jul 3 |
| Zone 6a | Mar 30 | May 4 | Jun 28 |
| Zone 6b | Mar 25 | Apr 29 | Jun 23 |
| Zone 7a | Mar 20 | Apr 24 | Jun 18 |
| Zone 7b | Mar 15 | Apr 19 | Jun 13 |
| Zone 8a | Mar 4 | Apr 8 | Jun 2 |
| Zone 8b | Feb 22 | Mar 29 | May 23 |
| Zone 9a | Feb 4 | Mar 11 | May 5 |
| Zone 9b | Jan 20 | Feb 24 | Apr 20 |
| Zone 10a | Jan 10 | Feb 14 | Apr 10 |
| Zone 10b | Dec 25 | Jan 29 | Mar 25 |