What to Plant in December in Colorado

Your complete December planting guide for Colorado (USDA Zone 5). Last frost: April 30. First frost: October 5. Growing season: 155 days.

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Start Indoors

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Transplant Outdoors

🌱

Direct Sow

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Harvest

Colorado Growing Season

JanFebMarAprMayJunJulAugSepOctNovDec

Plant after April 30 · Harvest before October 5

Colorado · Zone 5

Zone 5 December guide

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🏠 Start Indoors in Colorado — December36

Microgreens(36)

Cilantro Microgreens

10-14 days · Moderate

Arugula Microgreens

10-15 days · Easy

Fenugreek Microgreens

7-14 days · Easy to moderate

Wheatgrass Microgreens

7-10 days · Very easy

Alfalfa Microgreens

6-10 days · Easy

Clover Microgreens

8-12 days · Easy to Moderate

🧺 Harvest in Colorado — December48

Microgreens(36)

Cilantro Microgreens

10-14 days · Moderate

Arugula Microgreens

10-15 days · Easy

Fenugreek Microgreens

7-14 days · Easy to moderate

Wheatgrass Microgreens

7-10 days · Very easy

Alfalfa Microgreens

6-10 days · Easy

Clover Microgreens

8-12 days · Easy to Moderate

Alliums(7)

Elephant Garlic

240-270 days · Easy

Music Hardneck Garlic

240-270 days · Easy

Spanish Roja Garlic

240-270 days · Easy

German Extra Hardy Garlic

240-270 days · Easy

Inchelium Red Softneck Garlic

240-270 days · Easy to Moderate

Georgia Fire Garlic

240-270 days · Easy

Berries & Fruits(4)

Duke Blueberry

1095-1460 days · Moderate

Chester Thornless Blackberry

730 days · Moderate

Heritage Red Raspberry

365-730 days · Easy

Honeyberry (Haskap)

730-1095 days · Easy

Brassicas(1)

Purple Sprouting Broccoli 'Early Purple Sprouting'

220-240 days · Moderate

What to Plant in December in Colorado

Colorado Growing Season

Colorado · Zone 5

🏠 Start Indoors in Colorado — December36

Microgreens(36)

🧺 Harvest in Colorado — December48

Microgreens(36)

Alliums(7)

Berries & Fruits(4)

Brassicas(1)

December in Other Zone 5 States

December by Zone

Colorado Monthly Guides