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Can You Grow Rosemary in Colorado?

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

Grow indoors

Rosemary grows beautifully in containers that can be brought indoors before hard frost.

Plant zones

6a–11b

Colorado last frost

early April

Colorado first frost

late October

Days to harvest

Perennial

About Rosemary

Rosemary is a Mediterranean herb that thrives in poor well-drained soil and full sun once established.

Plant in the sunniest most well-drained spot. Excellent in containers — bring indoors in winter in cold zones. Drought-tolerant once established. Avoid overwatering.

Full rosemary 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 Rosemary in Colorado?

Rosemary grows beautifully in containers that can be brought indoors before hard frost.

What zone is Colorado?

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

When do you plant Rosemaries in Colorado?

See the planting guide for Rosemary — timing depends on your exact frost date.