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Can You Grow Rhubarb in Maine?
US · USDA Zone 5a · zones 3b, 4a, 4b, 5a, 5b
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
Plant zones
Maine last frost
Maine 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 Maine
Maine has a cool humid continental climate. Coastal areas are Zone 5b-6a; inland and northern Maine is Zone 3b-4a. Short summers but excellent for potatoes, blueberries, and cool crops.
Frequently asked questions
Can you grow Rhubarb in Maine?
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
What zone is Maine?
Maine spans USDA Zone 5a (3b, 4a, 4b, 5a, 5b).
When do you plant Rhubarb in Maine?
See the planting guide for Rhubarb — timing depends on your exact frost date.