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Can You Grow Artichoke in New Hampshire?

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

Won't grow here

Artichokes need a long, mild growing season that your zone cannot provide reliably.

Plant zones

6a–9b

New Hampshire last frost

early April

New Hampshire first frost

late October

Days to harvest

85–100 days

When to plant Artichokes in New Hampshire

Start indoors

Feb 9

Transplant

Apr 7

Harvest

Jul 1 – Jul 16

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

About Artichoke

Artichokes are dramatic architectural plants that produce large thistle-like flower buds for eating. A perennial in mild zones, they need a long warm season. The giant silvery plants become a striking garden focal point.

Start indoors 8-10 weeks before last frost. Vernalization (cold treatment of seedlings) improves first-year flowering — expose seedlings to 10 days below 50°F. Give each plant 4x4 feet of space. Cut main bud before it opens; side buds follow.

Full artichoke 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.