When to Plant Kale in Zone 11b

Brassica oleracea var. sabellica

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

Plant Kale in Zone 11b

  • Start indoors: Dec 17
  • Transplant: Jan 15 — after last frost (Jan 8)
  • First harvest: Mar 13 (50–75 days)
⚠️ Zone 11b last frost: Jan 8. Don't plant frost-sensitive crops before this date.
Last frost
Jan 8
First frost
Jan 1
Growing season
358 days
Zone 11b is the warmer half of Zone 11

Zone 11b has a last frost around Jan 8 and first frost around Jan 1, giving you approximately 358 growing days. This is about 2 weeks longer than Zone 11a. For more details see the Zone 11 complete guide.

Other Zones for Kale

Zone 2Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9Zone 10Zone 11
📚 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.