When to plant arugula in zone 5a
A planting schedule for arugula in USDA hardiness zone 5a, where the typical last spring frost is around May 4, 2026 and the first fall frost around Oct 6, 2026. Dates are computed from NOAA frost normals for a representative location (Rumford, ME) — your exact dates depend on your address.
Arugula planting schedule for zone 5a
- Start seeds indoorsFeb 20, 2026 – Oct 2, 2026
- Start hardening offMar 27, 2026 – Oct 25, 2026
- Transplant outdoorsApr 3, 2026 – Oct 30, 2026
Playing it safe with tender crops? Spring frost holds off until about May 15, 2026 in roughly 9 years out of 10.
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Arugula in other zones
More crops for zone 5a
Frost dates are NOAA 1991–2020 climate normals for a representative location (Rumford, ME) in zone 5a; your exact dates depend on your address. Schedules are guidance, not guarantees.