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Zone 9B — December

What to Plant in December in Zone 9B

December in Zone 9B: 101 crops to start indoors, 11 to plant or direct sow outside, and 2 entering harvest window. Last frost averages January 28. Reference city: Miami, FL.
Updated May 14, 2026 · Frost data from NOAA 1991-2020 Climate Normals
101 Start Indoors
11 Plant Outside
2 Harvest

Start Indoors in December

Plant Type Start Indoors Transplant Outside Harvest Window
African Flake Daisy Flowers flower Dec 31 Jan 14 Apr 14 – Apr 24
Alaska Early Pea legume Dec 31 Jan 7 Mar 3 – Mar 8
All Season Cabbage brassica Dec 31 Jan 14 Mar 25 – Apr 4
All Year Round Cauliflower brassica Dec 31 Jan 14 Mar 20
Amish Paste Tomatoes tomato Dec 31 Jan 28 Apr 12 – Apr 23
Ancho Grande Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Angelica herb Dec 31 Jan 28 May 28 – Jun 27
Barletta, Pearly White Onions root_vegetable Dec 31 Jan 28 Apr 13 – Apr 18
Birds Eye Hot Peppers pepper Dec 31 Jan 28 May 8 – May 18
Brilliant Celeriac root_vegetable Dec 17 Jan 28 May 18 – May 28
Broad Windsor Fava Bean legume Dec 31 Jan 7 Mar 23 – Apr 2
Brunswick Cabbage brassica Dec 31 Jan 14 Apr 4 – Apr 14
Calabrese Broccoli brassica Dec 31 Jan 14 Mar 20
Caraway herb Dec 31 Jan 7 Jan 7 – Mar 13
Carentan Leeks allium Dec 24 Jan 14 Apr 14 – May 4
Cascadia Sugar Snap Pea legume Dec 31 Jan 7 Mar 13 – Mar 15
Charleston Wakefield Cabbage brassica Dec 31 Jan 14 Mar 30
Chervil herb Dec 31 Jan 7 Feb 11 – Feb 21
Chocolate Habanero Hot Peppers pepper Dec 31 Jan 28 Apr 23 – May 13
Copenhagen Cabbage brassica Dec 31 Jan 14 Mar 20
Curly Parsley herb Dec 24 Jan 28 Apr 8 – Apr 18
Dandelion herb Dec 31 Jan 7 Feb 16 – Mar 8
Danish Ballhead Cabbage brassica Dec 31 Jan 14 Apr 24 – May 4
Devils Tongue Yellow Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 18
Di Cicco Broccoli brassica Dec 31 Jan 14 Mar 20
Drumhead Cabbage brassica Dec 31 Jan 14 Apr 14 – Apr 24
Early Jersey Wakefield Cabbage brassica Dec 31 Jan 14 Mar 20 – Mar 30
Early Purple Broccoli brassica Dec 31 Jan 14 Mar 20
English White Daisy Flowers flower Dec 31 Jan 28 May 28 – Jun 27
Firecracker Hot Peppers pepper Dec 31 Jan 28 Apr 18 – May 28
Flat-Leaf Parsley herb Dec 24 Jan 28 Apr 8 – Apr 28
Giant Maximum Mix Snapdragon Flowers flower Dec 10 Jan 7 Mar 28 – Apr 12
Giant Musselburgh Leeks allium Dec 24 Jan 14 Apr 24 – Apr 29
Glory of Enkhuizen Cabbage brassica Dec 31 Jan 14 Apr 14
Golden Acre Cabbage brassica Dec 31 Jan 14 Mar 20
Grano Red Onions root_vegetable Dec 31 Jan 28 May 28
Grano White Onions root_vegetable Dec 31 Jan 28 May 28
Green Arrow Pea legume Dec 31 Jan 7 Mar 13 – Mar 18
Hard Red Wheat Cover Crop cover crop Dec 31 Jan 7 Mar 23 – Apr 12
Holiday Marbles Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 18
Igloo Cauliflower brassica Dec 31 Jan 14 Mar 20 – Mar 25
Imperial Star Artichoke vegetable Dec 24 Jan 28 Apr 28 – May 8
Lemon Habanero Hot Peppers pepper Dec 31 Jan 28 Apr 23 – May 13
Little Marvel Pea legume Dec 31 Jan 7 Mar 8 – Mar 11
Mammoth Melting Sugar Snow Pea legume Dec 31 Jan 7 Mar 16 – Mar 22
Michihili Cabbage brassica Dec 31 Jan 14 Mar 25
NuMex Twilight Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 28
OG American Flag Leeks allium Dec 24 Jan 14 Apr 14 – Apr 24
Orange Habanero Hot Peppers pepper Dec 31 Jan 28 Apr 23 – May 13
Oregon Giant Snow Pea legume Dec 31 Jan 7 Mar 18 – Mar 22
Oregon Sugar Pod Snow Pea legume Dec 31 Jan 7 Mar 8 – Mar 16
Ox-Eye Daisy Flowers flower Dec 31 Jan 28 Jan 28 – Jun 12
Pasilla de Oaxaca Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Pepperoncini Hot Peppers pepper Dec 31 Jan 28 Apr 3 – Apr 13
Pretty Purple Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 28
Progress No. 9 Shelling Pea legume Dec 31 Jan 7 Mar 6 – Mar 10
Purple Tiger Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 8
Red Acre Cabbage brassica Dec 31 Jan 14 Mar 30 – Apr 4
Red Burgundy Onions root_vegetable Dec 31 Jan 28 May 18 – May 28
Red Caribbean Habanero Hot Peppers pepper Dec 31 Jan 28 Apr 23 – May 13
Red Cayenne Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Red Cherry Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Red Mushroom Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Santa Fe Grande Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 18
Savoy Perfection Cabbage brassica Dec 31 Jan 14 Apr 14 – Apr 19
Shasta Daisy Flowers flower Dec 24 Jan 28 May 28 – Jan 28
Snowball Self-Blanche Cauliflower brassica Dec 31 Jan 14 Mar 20
Southport Red Globe Onions root_vegetable Dec 31 Jan 28 May 28
Southport White Globe Onions root_vegetable Dec 31 Jan 28 May 28
Spanish Sweet White Onions root_vegetable Dec 31 Jan 28 May 18 – May 28
Sugar Ann Snap Pea legume Dec 31 Jan 7 Feb 28 – Mar 4
Tabasco Hot Peppers pepper Dec 31 Jan 28 Apr 18 – Apr 28
Tepin Hot Peppers pepper Dec 31 Jan 28 May 28 – Aug 16
Thyme herb Dec 31 Jan 28 Apr 18 – May 3
Tropical Milkweed Flowers flower Dec 31 Jan 28 Apr 28 – May 28
Victoria Rhubarb vegetable Dec 24 Jan 14 Jan 14 – Jan 13
Viola and pansy edible flowers flower Dec 10 Jan 14 Mar 15 – Mar 25
Violetta Purple Cauliflower brassica Dec 31 Jan 14 Mar 20
Wando Pea legume Dec 31 Jan 7 Mar 11 – Mar 16
Yellow Jalapeno (Caloro) Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Yellow Mushroom Hot Peppers pepper Dec 31 Jan 28 Apr 13 – Apr 23
Yellow Scotch Bonnet Hot Peppers pepper Dec 31 Jan 28 Apr 28 – May 28
Alexandria Alpine Strawberry berry Dec 24 Feb 4 May 15 – Jun 4
California Wonder Peppers pepper Dec 31 Feb 4 Apr 17 – Apr 20
Carolina Reaper peppers pepper Dec 31 Feb 11 May 12 – Jun 11
Cherry Bomb peppers pepper Dec 31 Feb 11 Apr 27 – May 2
Datil peppers pepper Dec 31 Feb 11 May 12 – Jun 1
Golden Celery vegetable Dec 31 Feb 4 Apr 30 – May 10
Pinkeye Purple Hull Cowpea legume Dec 17 Feb 11 Apr 7 – Apr 20
Tendercrisp Celery vegetable Dec 31 Feb 4 Apr 30 – May 15
Trinidad Moruga Scorpion peppers pepper Dec 31 Feb 11 May 2 – Jun 11
Black Salsify root_vegetable Dec 24 Dec 31 Apr 20 – May 5
Chinese Forget-Me-Not Flowers flower Dec 22 Dec 29 Mar 4 – Mar 24
Crimson Cherry Rhubarb Root vegetable Dec 24 Dec 31 Dec 31
Dutch Yellow Shallots allium Dec 24 Dec 31 Mar 31 – Apr 30
French Red Shallots allium Dec 24 Dec 31 Mar 31 – Apr 30
Holland Red Shallots allium Dec 24 Dec 31 Mar 31 – Apr 30
Phacelia California Bluebell/Desert Bluebell Flowers flower Dec 7 Dec 14 Feb 7 – Feb 17
Rapeseed Cover Crop cover crop Dec 22 Dec 29 Feb 12 – Mar 9
Tatsoi lettuce Dec 17 Dec 31 Jan 25 – Feb 14
Yellow Sweet Blossom Clover Cover Crop cover crop Dec 22 Dec 29 Feb 27 – Mar 29

Plant Outside in December

Plant Type Action Target Date Harvest Window
Black Salsify root_vegetable Transplant Dec 31 Apr 20 – May 5
Chinese Forget-Me-Not Flowers flower Transplant Dec 29 Mar 4 – Mar 24
Crimson Cherry Rhubarb Root vegetable Transplant Dec 31 Dec 31
Dutch Yellow Shallots allium Transplant Dec 31 Mar 31 – Apr 30
French Red Shallots allium Transplant Dec 31 Mar 31 – Apr 30
Holland Red Shallots allium Transplant Dec 31 Mar 31 – Apr 30
Phacelia California Bluebell/Desert Bluebell Flowers flower Transplant Dec 14 Feb 7 – Feb 17
Rapeseed Cover Crop cover crop Transplant Dec 29 Feb 12 – Mar 9
Tatsoi lettuce Transplant Dec 31 Jan 25 – Feb 14
Texas 1015Y SuperSweet Onion root_vegetable Transplant Dec 31 Apr 15 – Apr 25
Yellow Sweet Blossom Clover Cover Crop cover crop Transplant Dec 29 Feb 27 – Mar 29

Harvest in December

Plant Type Planted / Sown Harvest Window
Jewel Strawberries berry Jan 28 Dec 24 – Mar 4
Crimson Cherry Rhubarb Root vegetable Dec 31 Dec 31

Key Tasks for December in Zone 9B

  1. 1 Start 101 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 Harden off transplants before moving outdoors — set them outside in a sheltered spot for increasing hours over 7–10 days before planting in the ground.
  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.
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