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Can You Grow Calendula in Montana?

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

Grows well here

Calendula grows well here and is one of the easiest, most useful companion flowers — it reseeds freely.

Plant zones

2a–11b

Montana last frost

mid-April

Montana first frost

mid-October

Days to harvest

50–70 days

When to plant Calendulas in Montana

Direct sow

Oct 1 – Oct 31

Harvest

Jun – Jul (following year)

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

About Calendula

Calendula (pot marigold) is a cheerful, easy annual flower with edible petals — a pollinator magnet and a classic companion plant that repels pests throughout the garden.

Direct sow after last frost or start indoors 4 weeks earlier. Deadhead to keep it blooming. Edible petals brighten salads and are used in natural salves.

Full calendula growing guide →

Gardening in Montana

Montana has a semi-arid continental climate with cold winters and warm summers. Most of the state is Zone 4-5; protected valleys are Zone 5-6. Short but intense growing seasons.