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Can You Grow Marjoram in Ontario?

Canada · Canadian Zone 5 · zones 3, 4, 5, 6, 7

Grows well here

Marjoram grows well here in full sun with well-drained soil — a fragrant, low-maintenance herb.

Plant zones

4a–9b

Ontario last frost

mid-April

Ontario first frost

mid-October

Days to harvest

70–100 days

When to plant Marjorams in Ontario

Start indoors

Feb 17

Transplant

Apr 15

Harvest

Jun 24 – Jul 24

Dates are approximate, based on Ontario's average frost dates. Your exact yard may vary by microclimate.

About Marjoram

Marjoram is oregano's sweeter, milder cousin — a tender perennial herb (grown as an annual in cold zones) with a warm, aromatic flavor perfect for Mediterranean cooking.

Start indoors 6-8 weeks before last frost. Pinch regularly to keep bushy. Harvest before it flowers for best flavor. Bring pots indoors in cold zones.

Full marjoram growing guide →

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.