When to plant cucumbers in Hawaii
Hawaii spans USDA hardiness zones 10-13. Average last spring frost: no average frost in most of the state. This calendar gives you the indoor start, transplant, and direct-sow dates for Cucumis sativus.
Hawaii planting dates for cucumbers
Dates for Hawaii vary significantly by region. Use the average frost date lookup for your specific ZIP code, then apply the standard offsets: start cucumbers indoors 3 weeks before your last frost; transplant 2 weeks after last frost; direct sow 1 weeks after last frost.
Why these dates
Cucumbers germinate quickly in warm soil (70F+) but get destroyed by cucumber beetles - row covers until flowering are essential in much of the US.
The dates above are anchored to Hawaii's average last spring frost date of no-frost, with offsets standard across university Extension publications. For zone-specific local timing, use the frost date lookup tool with your ZIP code.
More on growing cucumbers
The full growing guide for cucumbers - varieties, soil, fertilization, pests, harvest, storage - is here: Cucumbers growing guide.
More Hawaii planting information
- Full Hawaii planting calendar (all crops + ornamentals)
- Find your exact USDA zone by ZIP
- Look up your average frost dates
- Seed starting timeline calculator