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Can You Grow Cucumber in Idaho?

US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b

Grows well here

Cucumbers grow quickly here — expect harvest within 50-70 days of transplanting after last frost.

Plant zones

3b–11b

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

50–70 days

When to plant Cucumbers in Idaho

Start indoors

Feb 21

Transplant

Mar 15

Harvest

May 4 – May 24

Dates are approximate, based on Idaho's average frost dates. Your exact yard may vary by microclimate.

About Cucumber

Cucumbers are fast-growing warm-season crops that produce heavily once summer heat arrives.

Direct sow or transplant after all frost risk passes — cucumbers hate cold. Keep soil consistently moist. Train vines up a trellis to save space and improve airflow.

Full cucumber growing guide →

Gardening in Idaho

Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.

See what grows well in Idaho →

Frequently asked questions

Can you grow Cucumber in Idaho?

Cucumbers grow quickly here — expect harvest within 50-70 days of transplanting after last frost.

What zone is Idaho?

Idaho spans USDA Zone 6b (3b, 4a, 4b, 5a, 5b, 6a, 6b).

When do you plant Cucumbers in Idaho?

Plant Cucumbers around mid-March (start indoors Feb 21), harvest May 4 – May 24.