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USDA Zone 10b planting calendar

In USDA Zone 10b, the average last spring frost is around 01/20 and the first fall frost around 01/25, giving roughly a 365-day growing season. Plant cool-season crops from late winter; warm-season crops after the last frost.
Last frost ~01/20 First frost ~01/25 ~365-day season 6 NOAA stations

Frost dates are the median across 6 NOAA weather stations in Zone 10b (1991–2020 normals, 50% probability). Range: last frost 01/06–02/02, first frost 01/05–12/24. For your exact town, use the ZIP tool.

The year in Zone 10b

Jan35 tasksFeb20 tasksMar—Apr—May—Jun—Jul—Aug—Sep—Oct—Nov—Dec—

What to plant now (October)

October falls between planting windows here. The next window opens around January 1 (Tomatoes, Peppers, Eggplant, Basil and 31 more) — see January.

Choose supplies for your planting plan

Check the crop's sowing method first. Trays and seed-starting mix are for indoor starts; row cover can help protect outdoor seedlings. Reuse supplies you already have, and check product dimensions before ordering.

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All crops in Zone 10b

CropStart indoorsTransplant / sowSow for fall
TomatoesDecember 20 – December 27January 24 – February 7—
PeppersDecember 9January 27 – February 10—
EggplantDecember 13 – December 27January 31 – February 14—
BasilDecember 20January 24 – February 7—
BroccoliDecember 2 – December 9December 23 – January 6October 16 – October 30
CabbageNovember 11 – November 25December 16 – December 30September 6 – September 20
CauliflowerNovember 25 – December 9December 30 – January 13October 21 – November 4
Brussels SproutsNovember 18 – December 2December 23 – January 6—
KaleNovember 11 – November 25December 16 – December 30October 26 – November 9
LettuceNovember 22 – November 29December 20 – January 3October 11 – October 25
Spinach—December 13 – December 27November 20 – December 4
OnionsOctober 14 – October 28December 16 – December 30—
LeeksOctober 21 – November 4December 23 – January 6—
Swiss ChardNovember 25 – December 2December 30 – January 13—
Radishes—December 23 – January 6December 5 – December 19
Turnips—December 23 – January 6November 5 – November 19
Beets—December 30 – January 13October 31 – November 14
Carrots—January 13 – January 27October 1 – October 15
Peas—December 9 – December 23October 26 – November 9
Beans—January 20 – February 3—
Sweet Corn—January 20 – February 3—
CucumbersJanuary 3 – January 10January 24 – February 7—
Summer Squash & ZucchiniJanuary 6 – January 13January 27 – February 10—
Winter SquashJanuary 6 – January 13January 27 – February 10—
PumpkinsJanuary 6 – January 13January 27 – February 10—
MelonsJanuary 6 – January 13January 27 – February 10—
OkraDecember 30 – January 13February 3 – February 17—
Potatoes—January 3 – January 17—
ParsleyOctober 25 – November 1December 27 – January 10—
CollardsNovember 11 – November 25December 16 – December 30October 11 – October 25
WatermelonJanuary 6 – January 13January 27 – February 10—
Sweet Potatoes—January 24 – February 7—
CeleryNovember 4 – November 18January 20 – February 3—
KohlrabiNovember 11 – November 25December 16 – December 30—
ArtichokeOctober 28 – November 25January 13 – January 27—
Asparagus—December 20 – January 3—
Cilantro—January 20 – February 3—
Dill—January 3 – January 17—
OreganoNovember 18 – December 2January 20 – February 3—
SageDecember 2 – December 16January 20 – February 3—
ThymeNovember 18 – December 2January 20 – February 3—

Fall bulb planting in Zone 10b

Planted in fall after the first frost, for harvest the following summer — a separate calendar from the spring/fall-harvest crops above.

CropPlant cloves (fall)Harvest
GarlicJanuary 29 – February 12Following summer

Calendar computed 2026-10-07. Frost: NOAA NCEI 1991–2020 Climate Normals. Zone: USDA 2023 Plant Hardiness Zone Map (PRISM-derived). Planting rules: UNH Extension, Johnny's Selected Seeds, UGA Extension.