What to Plant in December

Your complete Zone 9A planting guide for December. Here's everything you should be starting, sowing, transplanting, and harvesting this month.

Start Indoors

8 plants

Pepper (Bell)

🕐

60-90 days

📏

18-24 inches

Peppers want warm soil. Going out two weeks after the last frost beats rushing them.

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Pepper (Hot)

🕐

60-90 days

📏

18-24 inches

Slower to germinate than sweet peppers, so give them the full head start.

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Eggplant

🕐

60-80 days

📏

24-36 inches

Even fussier about cold than peppers. Warm soil is the whole game.

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Onion

🕐

90-120 days

📏

4-6 inches

Match the variety to your latitude: long-day north, short-day south.

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Parsley

🕐

70-90 days

📏

6-8 inches

Slow to germinate. Soaking the seed overnight helps.

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Mint

🕐

60-90 days

📏

12-18 inches

Keep it in a pot. In the ground it will take over.

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Thyme

🕐

70-90 days

📏

12-18 inches

Wants sharp drainage and tolerates being forgotten.

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Rosemary

🕐

80-120 days

📏

24 inches

Hardy outdoors from about zone 7 up. Colder than that, grow it in a pot and bring it in.

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Direct Sow

8 plants

Lettuce

🕐

30-60 days

📏

6-12 inches

A second sowing now gives you a fall harvest.

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Spinach

🕐

35-50 days

📏

4-6 inches

A second sowing now gives you a fall harvest.

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Kale

🕐

50-70 days

📏

18-24 inches

A second sowing now gives you a fall harvest.

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Peas

🕐

55-70 days

📏

2-4 inches

A second sowing now gives you a fall harvest.

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Radish

🕐

22-35 days

📏

1-2 inches

A second sowing now gives you a fall harvest.

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Carrot

🕐

60-80 days

📏

2-3 inches

A second sowing now gives you a fall harvest.

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Cilantro

🕐

45-70 days

📏

6-8 inches

A second sowing now gives you a fall harvest.

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Garlic

🕐

240-270 days

📏

6 inches

A second sowing now gives you a fall harvest.

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Harvest

10 plants

Beans (Green)

🕐

50-65 days

📏

4-6 inches

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Lettuce

🕐

30-60 days

📏

6-12 inches

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Spinach

🕐

35-50 days

📏

4-6 inches

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Dill

🕐

40-60 days

📏

12 inches

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Kale

🕐

50-70 days

📏

18-24 inches

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Peas

🕐

55-70 days

📏

2-4 inches

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Radish

🕐

22-35 days

📏

1-2 inches

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Carrot

🕐

60-80 days

📏

2-3 inches

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Fennel

🕐

60-90 days

📏

12 inches

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Cilantro

🕐

45-70 days

📏

6-8 inches

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