2026 Planting Guide
Spring cropWhen to Plant Tomatoes in California
Complete guide to growing tomatoes in California with optimal planting dates, recommended varieties, soil requirements, pest management, and harvest timing. Data sourced from USDA and state extension services.
Monthly Planting Calendar
Visual overview of the tomatoes growing season in California. Red diamond markers indicate frost date boundaries.
Quick Facts
Min. Soil Temp
60°F (16°C) minimum
Growing Period
70-90 days
From planting to harvest
Last Spring Frost
February 15
Wait until after this date
First Fall Frost
December 1
Harvest before this date
Monthly Task Timeline
Month-by-month guide for managing tomatoes in California.
January - February
Off-seasonCover crop planting, soil testing, equipment maintenance, and planning for next season.
March - May
PlantPrepare soil, apply starter fertilizer, and sow seeds at recommended depth and spacing.
June
Grow & MonitorIrrigate as needed, scout for pests, apply side-dress fertilizer, and manage weeds.
July - October
HarvestCheck maturity indicators, schedule equipment, harvest at optimal moisture content.
November - December
Off-seasonCover crop planting, soil testing, equipment maintenance, and planning for next season.
Best Tomatoes Varieties for California
These varieties have proven performance in California's climate and soil conditions. Always source certified seed from reputable dealers.
| # | Variety | Best For |
|---|---|---|
| 1 | Roma VF | California climate |
| 2 | Celebrity | California climate |
| 3 | Early Girl | California climate |
| 4 | San Marzano | California climate |
| 5 | Sun Gold | California climate |
Growing Tips for California
Region-specific advice from agricultural extension services and experienced California farmers.
Central Valley: transplant March-April
Processing tomatoes dominate acreage
Drip irrigation with plastic mulch standard
Pest & Disease Watch
Monitor for these threats throughout the growing season. Integrated Pest Management (IPM) is recommended.
Tomato hornworm
Scout regularly and use integrated pest management
Whiteflies
Scout regularly and use integrated pest management
Aphids
Scout regularly and use integrated pest management
Late blight
Scout regularly and use integrated pest management
Fusarium wilt
Scout regularly and use integrated pest management
Companion Planting
These plants grow well alongside tomatoes, improving pest control, pollination, and nutrient availability.
Frost Dates
Last Spring Frost
February 15
Wait until after this date before planting frost-sensitive crops outdoors.
First Fall Frost
December 1
Plan to complete harvest of warm-season crops before this date arrives.
Frequently Asked Questions
When is the best time to plant tomatoes in California?
The optimal planting window for tomatoes in California is March 15 to May 15. Soil temperature should reach at least 60°F (16°C) minimum before planting. The total growing period is 70-90 days.
What varieties of tomatoes grow best in California?
The best varieties for California include Roma VF, Celebrity, Early Girl, San Marzano, Sun Gold. These varieties are adapted to local climate and soil conditions and have proven performance records.
When can I harvest tomatoes in California?
The harvest window for tomatoes in California is typically July 1 to October 31. The crop takes 70-90 days from planting to reach maturity.
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Data Sources
Data sourced from USDA NASS Crop Planting Dates, California Cooperative Extension Service, and NOAA frost date records. Last updated: March 2026.
Planting dates are averages and may vary by county, elevation, and local microclimate. Always consult your local extension office for the most precise recommendations.