Carrot in Zone 10a & 10b

Daucus carota

When to plant carrot in zone 10b

Zones 10a and 10b share the same average frost dates in our data, so this page covers both.

Method: Direct sow: Direct-sow outside. Carrot doesn't transplant well, or doesn't need the extra time indoors.

Spacing: 16 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.

Zone 10b dates sourced from growinginthegarden.com.

Carrots are almost never transplanted, their taproot resents disturbance and will fork or stunt if moved once it's started growing. Every carrot in a garden should go from seed packet directly into its final spot in the ground.

How carrot fits zone 10's season

Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Carrot needs about 70 days from sowing to first harvest.

Good companions

• Onion: A real, peer-reviewed field study (Uvah & Coaker 1984) found intercropping onions with carrots reduced carrot rust fly damage, on the theory that mixed scents mask the host plant from pests hunting by smell.
• Tomato: Carrots aerate soil around tomato roots.

Where to buy carrot seeds

• Botanical Interests
• True Leaf Market
• Burpee
• High Mowing Organic Seeds

See why we recommend these suppliers →

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See it growing

Search YouTube for "growing carrot" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

← Back to the full zone 10b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Carrot in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.

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