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Can You Grow Rhubarb in New Hampshire?
US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
Plant zones
New Hampshire last frost
New Hampshire first frost
Days to harvest
About Rhubarb
Rhubarb is extremely cold-hardy and productive — plant once and harvest stalks every spring for decades.
Plant crowns in spring. Never harvest the first year. Never eat the leaves — they are toxic. Mulch crowns in autumn. Divide every 5-7 years. Rhubarb actually improves after cold winters.
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.
Frequently asked questions
Can you grow Rhubarb in New Hampshire?
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
What zone is New Hampshire?
New Hampshire spans USDA Zone 5b (4a, 4b, 5a, 5b, 6a).
When do you plant Rhubarb in New Hampshire?
See the planting guide for Rhubarb — timing depends on your exact frost date.