When to plant cucumber in zone 3b
A planting schedule for cucumber in USDA hardiness zone 3b, where the typical last spring frost is around May 17, 2026 and the first fall frost around Sep 26, 2026. Dates are computed from NOAA frost normals for a representative location (Hannah, ND) — your exact dates depend on your address.
Cucumber planting schedule for zone 3b
- Start seeds indoorsMay 8, 2026 – Jul 28, 2026
- Start hardening offMay 26, 2026 – Aug 11, 2026
- Transplant outdoorsJun 5, 2026 – Aug 18, 2026
Playing it safe with tender crops? Spring frost holds off until about May 29, 2026 in roughly 9 years out of 10.
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Cucumber in other zones
More crops for zone 3b
Frost dates are NOAA 1991–2020 climate normals for a representative location (Hannah, ND) in zone 3b; your exact dates depend on your address. Schedules are guidance, not guarantees.