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Can You Grow Rhubarb in Oregon?
US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Rhubarb needs cold winters to break dormancy and struggles in warm climates.
Plant zones
Oregon last frost
Oregon 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 Oregon
Oregon has dramatically different climates west and east of the Cascades. The Willamette Valley is mild and productive year-round (Zone 8a-8b); eastern Oregon is semi-arid and colder (Zone 5-6).
Frequently asked questions
Can you grow Rhubarb in Oregon?
Rhubarb needs cold winters to break dormancy and struggles in warm climates.
What zone is Oregon?
Oregon spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).
When do you plant Rhubarb in Oregon?
See the planting guide for Rhubarb — timing depends on your exact frost date.