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Can You Grow Radish in Colorado?

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

Grows well here

Radishes grow in almost any zone — they are one of the fastest and easiest crops you can grow.

Plant zones

2a–9b

Colorado last frost

early April

Colorado first frost

late October

Days to harvest

22–30 days

When to plant Radishes in Colorado

Direct sow

Apr 7

Harvest

Apr 29 – May 7

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

About Radish

Radishes are the fastest vegetable you can grow — from seed to harvest in as little as 22 days.

Direct sow in early spring or late summer. Succession plant every 2 weeks for continuous harvest. Pull before they get woody. Great as a companion plant to mark slow-germinating rows.

Full radish growing guide →

Gardening in Colorado

Colorado has a semi-arid mountain climate with intense sunshine and low humidity. Front Range cities like Denver are Zone 5-6; higher elevations are Zones 3-4.

See what grows well in Colorado →

Frequently asked questions

Can you grow Radish in Colorado?

Radishes grow in almost any zone — they are one of the fastest and easiest crops you can grow.

What zone is Colorado?

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

When do you plant Radishes in Colorado?

Plant Radishes Apr 7, harvest Apr 29 – May 7.