When to plant arugula in zone 1b
A planting schedule for arugula in USDA hardiness zone 1b, where the typical last spring frost is around May 29, 2026 and the first fall frost around Aug 28, 2026. Dates are computed from NOAA frost normals for a representative location (ZIP 99745) — your exact dates depend on your address.
Arugula planting schedule for zone 1b
- Start seeds indoorsMar 22, 2026 – Aug 24, 2026
- Start hardening offApr 26, 2026 – Sep 16, 2026
- Transplant outdoorsMay 3, 2026 – Sep 21, 2026
Playing it safe with tender crops? Spring frost holds off until about Jun 14, 2026 in roughly 9 years out of 10.
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Arugula in other zones
More crops for zone 1b
Frost dates are NOAA 1991–2020 climate normals for a representative location (ZIP 99745) in zone 1b; your exact dates depend on your address. Schedules are guidance, not guarantees.