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Can You Grow Rosemary in Wyoming?

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

Won't grow here

Rosemary is a tender perennial that will not survive your winters outdoors — grow in a container and bring it inside.

Plant zones

6a–11b

Wyoming last frost

mid-April

Wyoming first frost

mid-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 Wyoming

Wyoming has a semi-arid mountain climate with cold winters and short summers. Most of the state is Zone 4-5; protected low-elevation areas may reach Zone 5b-6a. Focus on hardy crops.

See what grows well in Wyoming →

Frequently asked questions

Can you grow Rosemary in Wyoming?

Rosemary is a tender perennial that will not survive your winters outdoors — grow in a container and bring it inside.

What zone is Wyoming?

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

When do you plant Rosemaries in Wyoming?

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