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USDA Zone 10a planting calendar

In USDA Zone 10a, the average last spring frost is around 01/15 and the first fall frost around 12/02, giving roughly a 365-day growing season. Plant cool-season crops from late winter; warm-season crops after the last frost.
Last frost ~01/15 First frost ~12/02 ~365-day season 47 NOAA stations

Frost dates are the median across 47 NOAA weather stations in Zone 10a (1991–2020 normals, 50% probability). Range: last frost 01/04–02/16, first frost 01/03–12/28. For your exact town, use the ZIP tool.

The year in Zone 10a

Jan32 tasksFeb12 tasksMar—Apr—May—Jun—Jul1 taskAug5 tasksSep9 tasksOct2 tasksNov—Dec1 task

What to plant now (August)

Broccoli
Sow for fall harvest
Cauliflower
Sow for fall harvest
Lettuce
Sow for fall harvest
Carrots
Sow for fall harvest
Collards
Sow for fall harvest

All crops in Zone 10a

CropStart indoorsTransplant / sowSow for fall
TomatoesDecember 15 – December 22January 19 – February 2—
PeppersDecember 4January 22 – February 5—
EggplantDecember 8 – December 22January 26 – February 9—
BasilDecember 15January 19 – February 2—
BroccoliNovember 27 – December 4December 18 – January 1August 23 – September 6
CabbageNovember 6 – November 20December 11 – December 25July 14 – July 28
CauliflowerNovember 20 – December 4December 25 – January 8August 28 – September 11
Brussels SproutsNovember 13 – November 27December 18 – January 1—
KaleNovember 6 – November 20December 11 – December 25September 2 – September 16
LettuceNovember 17 – November 24December 15 – December 29August 18 – September 1
Spinach—December 8 – December 22September 27 – October 11
OnionsOctober 9 – October 23December 11 – December 25—
LeeksOctober 16 – October 30December 18 – January 1—
Swiss ChardNovember 20 – November 27December 25 – January 8—
Radishes—December 18 – January 1October 12 – October 26
Turnips—December 18 – January 1September 12 – September 26
Beets—December 25 – January 8September 7 – September 21
Carrots—January 8 – January 22August 8 – August 22
Peas—December 4 – December 18September 2 – September 16
Beans—January 15 – January 29—
Sweet Corn—January 15 – January 29—
CucumbersDecember 29 – January 5January 19 – February 2—
Summer Squash & ZucchiniJanuary 1 – January 8January 22 – February 5—
Winter SquashJanuary 1 – January 8January 22 – February 5—
PumpkinsJanuary 1 – January 8January 22 – February 5—
MelonsJanuary 1 – January 8January 22 – February 5—
OkraDecember 25 – January 8January 29 – February 12—
Potatoes—December 29 – January 12—
ParsleyOctober 20 – October 27December 22 – January 5—
CollardsNovember 6 – November 20December 11 – December 25August 18 – September 1
WatermelonJanuary 1 – January 8January 22 – February 5—
Sweet Potatoes—January 19 – February 2—
CeleryOctober 30 – November 13January 15 – January 29—
KohlrabiNovember 6 – November 20December 11 – December 25—
ArtichokeOctober 23 – November 20January 8 – January 22—
Asparagus—December 15 – December 29—
Cilantro—January 15 – January 29—
Dill—December 29 – January 12—
OreganoNovember 13 – November 27January 15 – January 29—
SageNovember 27 – December 11January 15 – January 29—
ThymeNovember 13 – November 27January 15 – January 29—

Fall bulb planting in Zone 10a

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
GarlicDecember 6 – December 20Following summer

Last verified 2026-08-28. 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.