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Can You Grow Calendula in New Hampshire?

US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a

Grows well here

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

Plant zones

2a–11b

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

50–70 days

When to plant Calendulas in New Hampshire

Direct sow

Oct 1 – Oct 31

Harvest

Jun – Jul (following year)

Dates are approximate, based on New Hampshire'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 New Hampshire

New Hampshire has a humid continental climate. Coastal areas are Zone 5b-6a; northern mountains are Zone 4a-5a. Short growing seasons but productive for cool-season crops and berries.

See what grows well in New Hampshire →

Frequently asked questions

Can you grow Calendula in New Hampshire?

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

What zone is New Hampshire?

New Hampshire spans USDA Zone 5b (4a, 4b, 5a, 5b, 6a).

When do you plant Calendulas in New Hampshire?

Plant Calendulas Oct 1 – Oct 31, harvest Jun – Jul (following year).