When to plant cucumbers in Oregon
Oregon spans USDA hardiness zones 4a-9b. Average last spring frost: 04-15 (W) to 05-25 (E). This calendar gives you the indoor start, transplant, and direct-sow dates for Cucumis sativus.
Oregon planting dates for cucumbers
Dates for Oregon 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 Oregon's average last spring frost date of 04-15 (W) to 05-25 (E), 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 Oregon planting information
- Full Oregon planting calendar (all crops + ornamentals)
- Find your exact USDA zone by ZIP
- Look up your average frost dates
- Seed starting timeline calculator