Skip to main content
Zone 10B — December

What to Plant in December in Zone 10B

December in Zone 10B: 2 crops to start indoors, 78 to plant or direct sow outside, and 0 entering harvest window. Last frost averages January 11. Reference city: Los Angeles, CA.
Updated August 12, 2026 · Frost data from NOAA 1991-2020 Climate Normals
2 Start Indoors
78 Plant Outside
0 Harvest
Frost window: Active

This is when frost can still happen in Zone 10B. The last spring frost typically lands on January 11, with a 10% chance of frost as late as February 10. Plan transplants with this window in mind.

See full Zone 10B frost outlook →

Start Indoors in December

Plant Type Start Indoors Transplant Outside Harvest Window
Texas 1015Y SuperSweet Onion root vegetable Dec 14 Jan 18 May 3 – May 13
Viola and pansy edible flowers flower Dec 28 Feb 1 Apr 2 – Apr 12

Plant Outside in December

Plant Type Action Target Date Harvest Window
All Year Round lettuce Direct Sow Dec 15 Feb 17, 2027 – Feb 26, 2027
America lettuce Direct Sow Dec 15 Jan 27, 2027 – Feb 8, 2027
Astro Arugula lettuce Direct Sow Dec 15 Jan 5, 2027 – Jan 24, 2027
Black Seeded Simpson lettuce Direct Sow Dec 15 Jan 29, 2027 – Jan 30, 2027
Blonde de Paris lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Bloomsdale Longstanding Spinach lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 5, 2027
Blue Curled Scotch lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 13, 2027
Bok Choy lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 13, 2027
Broadleaf Classic lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Broadleaf Sorrel lettuce Direct Sow Dec 15 Perennial — see plant page
Burgundy Boston lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 8, 2027
Buttercrunch lettuce Direct Sow Dec 15 Jan 30, 2027 – Feb 8, 2027
Butterhead Lettuce lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 18, 2027
Canary Yellow lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Chinese Broccoli (Gai Lan) brassica Direct Sow Dec 15 Jan 14, 2027 – Feb 3, 2027
Crisphead lettuce Direct Sow Dec 15 Feb 21, 2027 – Feb 28, 2027
Curly Kale lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 18, 2027
Dark Green Romaine lettuce Direct Sow Dec 15 Feb 13, 2027 – Feb 23, 2027
Dutch Lamb's Lettuce lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Endive / Escarole lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 18, 2027
Florida Broadleaf lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Fordhook Giant lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 8, 2027
French Lamb's Lettuce lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Full Heart Batavian lettuce Direct Sow Dec 15 Mar 10, 2027 – Mar 15, 2027
Georgia Southern Collard Greens lettuce Direct Sow Dec 15 Feb 13, 2027 – Mar 5, 2027
Giant Red lettuce Direct Sow Dec 15 Jan 29
Green Ice lettuce Direct Sow Dec 15 Jan 29
Green Wave lettuce Direct Sow Dec 15 Jan 29
Hot Pink lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Iceberg lettuce Direct Sow Dec 15 Feb 21, 2027 – Feb 28, 2027
Kagraner Sommer lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 11, 2027
Lacinato Kale lettuce Direct Sow Dec 15 Feb 13, 2027 – Feb 18, 2027
Large Leaf Sorrel lettuce Direct Sow Dec 15 Perennial — see plant page
Leaf Lettuce Mix lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 8, 2027
Little Gem lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 9, 2027
Lollo Bionda lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Lollo Rossa lettuce Direct Sow Dec 15 Feb 6, 2027 – Feb 9, 2027
Magenta Sunset lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 13, 2027
Marvel of Four Seasons lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 13, 2027
Matador Viking lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 1, 2027
Mesclun Mix lettuce Direct Sow Dec 15 Jan 5, 2027 – Jan 14, 2027
Mizuna lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Monstrueux de Viroflay lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 3, 2027
Morris Heading lettuce Direct Sow Dec 15 Feb 28, 2027 – Mar 5, 2027
Mustard Greens lettuce Direct Sow Dec 15 Jan 19, 2027 – Feb 3, 2027
Mâche (Corn Salad) lettuce Direct Sow Dec 15 Feb 13, 2027 – Mar 9, 2027
Napa Cabbage brassica Direct Sow Dec 15 Feb 23, 2027 – Mar 15, 2027
New Zealand Spinach lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Noble Giant lettuce Direct Sow Dec 15 Jan 30, 2027 – Feb 3, 2027
Old Fashion lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 3, 2027
Orange lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 8, 2027
Premier lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Radicchio lettuce Direct Sow Dec 15 Feb 13, 2027 – Mar 10, 2027
Rainbow Mix lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Red Leaf Lettuce lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 8, 2027
Red Romaine lettuce Direct Sow Dec 15 Feb 13, 2027 – Feb 23, 2027
Red Russian Kale lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Red Vein Sorrel lettuce Direct Sow Dec 15 Perennial — see plant page
Red-Stem Malabar Spinach lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 23, 2027
Romaine Lettuce lettuce Direct Sow Dec 15 Feb 18, 2027 – Feb 28, 2027
Ruby Red lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 13, 2027
Salad Bowl Green lettuce Direct Sow Dec 15 Feb 2, 2027 – Feb 3, 2027
Siberian Dwarf lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 8, 2027
Summer Bibb lettuce Direct Sow Dec 15 Feb 8, 2027 – Feb 13, 2027
Swiss Chard lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 13, 2027
Tango lettuce Direct Sow Dec 15 Jan 16, 2027 – Jan 24, 2027
Tatsoi lettuce Direct Sow Dec 15 Jan 9, 2027 – Jan 29, 2027
Tendergreen lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Tom Thumb lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 23, 2027
Tuscany Black lettuce Direct Sow Dec 15 Feb 13, 2027 – Feb 28, 2027
Vates Collard lettuce Direct Sow Dec 15 Feb 13, 2027 – Feb 28, 2027
Vates Kale lettuce Direct Sow Dec 15 Feb 3, 2027 – Feb 8, 2027
Verona Red lettuce Direct Sow Dec 15 Mar 10, 2027 – Mar 17, 2027
White Boston lettuce Direct Sow Dec 15 Jan 24, 2027 – Feb 3, 2027
Winner Kohlrabi brassica Direct Sow Dec 15 Jan 29, 2027 – Feb 3, 2027
Winter Density lettuce Direct Sow Dec 15 Feb 7, 2027 – Feb 13, 2027
Winter Giant lettuce Direct Sow Dec 15 Jan 29, 2027 – Feb 3, 2027
Witloof White lettuce Direct Sow Dec 15 Mar 31, 2027 – Apr 23, 2027

Harvest in December

Nothing to harvest in December for Zone 10B.
Next window: January — 32 varieties, including America, Astro Arugula, Black Seeded Simpson.

Key Tasks for December in Zone 10B

  1. 1 Start 2 varieties indoors this month under grow lights or in a sunny south-facing window. Use a seed-starting mix and bottom heat (70–75°F) for best germination rates.
  2. 2 Direct sow seeds at the recommended depth and spacing. Keep the seedbed consistently moist until germination is complete.
  3. 3 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
Back to full Zone 10B planting calendar
November December in Zone 10B January

Get a Personalized December Calendar

SoilStack builds your exact planting schedule from your ZIP code — day-by-day tasks, weather prompts, and harvest tracking included.

Start Your Free Garden Calendar