State × crop calendar
Pumpkins planting in Hawaii.
- Secondary crop
- Zone 11a
- 365-day season
- Last frost January 1
- Vegetable
- Frost Sensitive
Pumpkins planting in Hawaii is shaped by the state's 11a dominant hardiness zone, last frost date around January 1, and a 365-day growing season. Pumpkins is grown in Hawaii but is not a dominant crop — works for home gardens, food plots, and some commercial production.
Planting dates on this page are climatological estimates from USDA frost-date norms and zone-typical planting offsets. Verify against University of Hawaii College of Tropical Agriculture for variety- and county-specific guidance.
Planting calendar — 2026
Frost-anchored windows.
Pumpkins · Hawaii · 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
PumpkinsEarliest
January 15
Ideal start
January 22
Ideal end
February 19
Latest
March 4
Soil-temp trigger
Direct seed when soil reaches 60°F. Plan harvest date first — count back 90-110 days from desired harvest.Harvest window
Typical start
April 21
Typical end
May 21
Harvest timing varies with planting date and seasonal weather — these dates are typical for the ideal planting window.
Growing notes
Pumpkins can be successfully grown in Hawaii with attention to variety selection. The state's 365-day growing season requires choosing varieties appropriate for the growing window.
Pumpkins is grown in Hawaii but is not a dominant crop — works for home gardens, food plots, and some commercial production.
Agronomy reference
Pumpkins fundamentals.
Soil-temp minimum
60°F
Soil-temp optimum
65–85°F
Days to maturity
90–120
Water (in/wk)
1–2"
Soil pH
6–7
Nitrogen demand
moderate
Plan from intended harvest date — most pumpkin growers count back 90-110 days from desired late-September or October harvest.
Common pests to watch
- Squash vine borer
- Squash bugs
- Cucumber beetles
Pest pressure varies by region and year. Confirm current outbreaks with University of Hawaii College of Tropical Agriculture.
Common diseases
- Powdery mildew
- Bacterial wilt
- Phytophthora
Resistance varieties shift each year. Check the current variety trial report for your state.
Variety selection
Pumpkins varieties for Hawaii 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 Hawaii College of Tropical Agriculture →Search the extension site for “pumpkins variety trial” or “recommended pumpkins 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.
Pumpkins 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 →