State × crop calendar
Cucumbers planting in California.
- Primary crop
- Zone 9a
- 270-day season
- Last frost March 1
- Vegetable
- Frost Sensitive
Cucumbers planting in California is shaped by the state's 9a dominant hardiness zone, last frost date around March 1, and a 270-day growing season. Cucumbers is widely grown in California — commercially significant or common in home gardens and food plots.
Planting dates on this page are climatological estimates from USDA frost-date norms and zone-typical planting offsets. Verify against University of California Cooperative Extension for variety- and county-specific guidance.
Planting calendar — 2026
Frost-anchored windows.
Cucumbers · California · planting calendar
Planting windows shift earlier in southern parts of the state and later in northern parts. Use last frost date in your specific county as the reference.
Planting windows
Earliest → ideal → latest.
Spring planting
CucumbersEarliest
March 8
Ideal start
March 15
Ideal end
April 19
Latest
May 10
Soil-temp trigger
Direct seed when soil reaches 60°F at 2-inch depth. Cool soils slow germination dramatically.Harvest window
Typical start
May 4
Typical end
May 24
Harvest timing varies with planting date and seasonal weather — these dates are typical for the ideal planting window.
Growing notes
Cucumbers grows well in California's typical climate. California's 270-day growing season and 9a hardiness zone support reliable production with appropriate variety selection.
Cucumbers is widely grown in California — commercially significant or common in home gardens and food plots.
Agronomy reference
Cucumbers fundamentals.
Soil-temp minimum
60°F
Soil-temp optimum
65–85°F
Days to maturity
50–70
Water (in/wk)
1–2"
Soil pH
6–7
Nitrogen demand
moderate
Direct seed once soil is reliably warm. Trellising significantly improves yield and reduces disease pressure.
Common pests to watch
- Cucumber beetles (striped and spotted)
- Squash bugs
- Pickleworm
Pest pressure varies by region and year. Confirm current outbreaks with University of California Cooperative Extension.
Common diseases
- Powdery mildew
- Downy mildew
- Bacterial wilt
Resistance varieties shift each year. Check the current variety trial report for your state.
Variety selection
Cucumbers varieties for California live with your extension.
Variety selection
Variety performance is micro-regional and changes with each year's trial cycle. We don't republish variety lists — instead, we point directly at the source.
University of California Cooperative Extension →Search the extension site for “cucumbers variety trial” or “recommended cucumbers varieties” to find the current report.
Yield varies significantly by variety, soil, fertility, and management. Consult your state extension service for variety performance trials in your region.
Cucumbers timing. Live alerts.
Bield: Farm ties weather and soil-temperature stations in your county to crop planting thresholds — get notified the day soil temp clears your target window.
Start free trial →