When to plant arugula in zone 12a
A planting schedule for arugula in USDA hardiness zone 12a, where the typical last spring frost is around Jan 26, 2026 and the first fall frost around Jan 24, 2026. Dates are computed from NOAA frost normals for a representative location (Wahiawa, HI) — your exact dates depend on your address.
Arugula planting schedule for zone 12a
- Start seeds indoorsJan 15, 2026 – Jan 29, 2026
- Start hardening offFeb 19, 2026 – Feb 21, 2026
- Transplant outdoorsFeb 26, 2026 – Feb 26, 2026
Playing it safe with tender crops? Spring frost holds off until about Apr 9, 2026 in roughly 9 years out of 10.
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Arugula in other zones
More crops for zone 12a
Frost dates are NOAA 1991–2020 climate normals for a representative location (Wahiawa, HI) in zone 12a; your exact dates depend on your address. Schedules are guidance, not guarantees.