Root Vegetable

When to Plant Carrots in California

Patience is the secret ingredient. Carrots are slow to germinate but deliver sweet, crunchy rewards.

The Short Answer

California is the nation's largest carrot producer — the San Joaquin Valley and Imperial Valley grow carrots commercially year-round. Home gardeners benefit from the same conditions: moderate temperatures, excellent drainage, and minimal disease pressure. Coastal California can grow carrots nearly year-round.

California Frost Dates

Your planting dates depend on which part of California you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern California Mountains 5a, 5b, 6a, 6b May 1 - May 25 Sep 20 - Oct 15
Central Valley 9a, 9b Feb 10 - Mar 1 Nov 15 - Dec 5
Southern California Coast 10a, 10b, 11a Jan 1 - Feb 1 Dec 10 - Jan 1
Bay Area 9b, 10a Jan 20 - Feb 15 Nov 25 - Dec 15

Carrots Planting Schedule for California

Northern California Mountains (Zones 5a, 5b, 6a, 6b)

Average last frost: May 1 - May 25 · Average first frost: Sep 20 - Oct 15

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Central Valley (Zones 9a, 9b)

Average last frost: Feb 10 - Mar 1 · Average first frost: Nov 15 - Dec 5

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Southern California Coast (Zones 10a, 10b, 11a)

Average last frost: Jan 1 - Feb 1 · Average first frost: Dec 10 - Jan 1

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Bay Area (Zones 9b, 10a)

Average last frost: Jan 20 - Feb 15 · Average first frost: Nov 25 - Dec 15

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Growing Carrots in California

State-Specific Growing Tips

Coastal: sow nearly year-round. Central Valley: sow September through March. Inland Southern California: October through March. Mountain regions: spring and fall. California's sandy and loamy soils are naturally excellent for carrots — loose, deep, well-drained. Drip irrigation maintains the consistent moisture carrots need during their long germination period.

Recommended Varieties for California

Everything grows in California. Nantes for sweetness. Imperator for long, market-style carrots. Rainbow mixes (purple, yellow, white, red) for variety. UC Master Gardener variety trials include carrot data.

Common Challenges in California

Carrot rust fly. Nematodes in some soils. Aster yellows (spread by leafhoppers) causes hairy, distorted roots. In the Central Valley, summer heat above 90°F causes bitter, tough roots.

Growing Tips

Loose, sandy soil is ideal. Rocky or clay soil causes forked roots. Keep soil consistently moist until seeds germinate.

Companion Planting

Plant carrots alongside these companions for better growth:

Peas Lettuce Tomatoes Onions

Keep carrots away from:

Dill

The Bottom Line

Carrots can be grown successfully in California with proper attention to regional frost dates and local growing conditions. Timing varies across the state — Northern California Mountains gardeners work with a last frost around May 1 - May 25, while Bay Area sees frost end around Jan 20 - Feb 15. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Carrots Growing Guide National planting guide with all states California Planting Calendar All plants for California Carrots in Alabama Alabama planting dates Carrots in Alaska Alaska planting dates Carrots in Arizona Arizona planting dates Carrots in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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