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Can You Grow Rosemary in Delaware?

US · USDA Zone 7a · zones 6b, 7a

Grows well here

Rosemary grows as a perennial here — establish it once and it will thrive for years.

Plant zones

6a–11b

Delaware last frost

early March

Delaware first frost

late November

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 Delaware

Delaware has a humid subtropical climate moderated by the Atlantic. Mild winters and warm summers support a long growing season for mid-Atlantic vegetables.

See what grows well in Delaware →

Frequently asked questions

Can you grow Rosemary in Delaware?

Rosemary grows as a perennial here — establish it once and it will thrive for years.

What zone is Delaware?

Delaware spans USDA Zone 7a (6b, 7a).

When do you plant Rosemaries in Delaware?

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