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Can You Grow Rosemary in Ontario?
Canada · Canadian Zone 5 · zones 3, 4, 5, 6, 7
Rosemary grows beautifully in containers that can be brought indoors before hard frost.
Plant zones
Ontario last frost
Ontario first frost
Days to harvest
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.
Gardening in Ontario
Ontario spans several climate zones. Northern Ontario is Zone 3-4 with short seasons; southern Ontario is Zone 5-7 with long productive seasons. The Niagara Peninsula is one of Canada's premier fruit-growing regions.
Frequently asked questions
Can you grow Rosemary in Ontario?
Rosemary grows beautifully in containers that can be brought indoors before hard frost.
What zone is Ontario?
Ontario spans Canadian Zone 5 (3, 4, 5, 6, 7).
When do you plant Rosemaries in Ontario?
See the planting guide for Rosemary — timing depends on your exact frost date.