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Can You Grow Thyme in Pennsylvania?

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

Grows well here

Thyme grows easily here as a perennial — plant once and harvest for years.

Plant zones

4a–9b

Pennsylvania last frost

early April

Pennsylvania first frost

late October

Days to harvest

Perennial

About Thyme

Thyme is a drought-tolerant cold-hardy herb that thrives in poor soil and full sun.

Plant in well-drained soil — thyme rots in wet conditions. Prune after flowering to keep compact. Excellent for containers and rock gardens. Cut stems for drying just as flowers open.

Full thyme growing guide →

Gardening in Pennsylvania

Pennsylvania has a humid continental climate. Philadelphia is Zone 7a; Pittsburgh is Zone 6a; northern Pennsylvania is Zone 5a-5b. Four distinct seasons with a 6-7 month growing window.