When to plant brussels sprouts in zone 9b
A planting schedule for brussels sprouts in USDA hardiness zone 9b, where the typical last spring frost is around Feb 2, 2026 and the first fall frost around Dec 2, 2026. Dates are computed from NOAA frost normals for a representative location (ZIP 94271) — your exact dates depend on your address.
Brussels Sprouts planting schedule for zone 9b
- Start seeds indoorsDec 24, 2025 – Dec 25, 2026
- Start hardening offJan 25, 2026 – Jan 15, 2027
- Transplant outdoorsFeb 4, 2026 – Jan 22, 2027
Playing it safe with tender crops? Spring frost holds off until about Mar 4, 2026 in roughly 9 years out of 10.
Zone 9b covers a lot of ground. Enter your ZIP for brussels sprouts dates worked out from your nearest weather station:
Free on one garden — no credit card. See the full brussels sprouts growing guide or the whole zone 9b calendar.
Brussels Sprouts in other zones
More crops for zone 9b
Frost dates are NOAA 1991–2020 climate normals for a representative location (ZIP 94271) in zone 9b; your exact dates depend on your address. Schedules are guidance, not guarantees.