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Can You Grow Kale in New Hampshire?

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

Grows well here

Kale grows exceptionally well here — it is one of the most cold-tolerant vegetables available.

Plant zones

2a–9b

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

55–75 days

When to plant Kales in New Hampshire

Start indoors

Mar 10

Transplant

Apr 7

Harvest

Jun 1 – Jun 21

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

About Kale

Kale is one of the hardiest vegetables available — it survives hard frosts and tastes sweeter after a freeze.

Sow indoors 4-6 weeks before last frost or direct sow in late summer for fall harvest. Harvest outer leaves to keep the plant producing. Cold-hardy varieties survive winter in Zone 7+.

Full kale 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 Kale in New Hampshire?

Kale grows exceptionally well here — it is one of the most cold-tolerant vegetables available.

What zone is New Hampshire?

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

When do you plant Kales in New Hampshire?

Plant Kales around early April (start indoors Mar 10), harvest Jun 1 – Jun 21.