When to Plant Brussels Sprouts in Zone 10b

Brassica oleracea var. gemmifera

Last updated: May 15, 2026 · Sources: USDA, NOAA, Cooperative Extension
Action Plan

Plant Brussels Sprouts in Zone 10b

  • Start indoors: Dec 23
  • Transplant: Feb 10 — after last frost (Feb 3)
  • First harvest: May 8 (80–110 days)
⚠️ Zone 10b last frost: Feb 3. Don't plant frost-sensitive crops before this date.
Last frost
Feb 3
First frost
Dec 17
Growing season
317 days
Zone 10b is the warmer half of Zone 10

Zone 10b has a last frost around Feb 3 and first frost around Dec 17, giving you approximately 317 growing days. This is about 2 weeks longer than Zone 10a. For more details see the Zone 10 complete guide.

Other Zones for Brussels Sprouts

Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9Zone 10
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.
Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.