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Can You Grow Rhubarb in Oklahoma?
US · USDA Zone 7a · zones 6a, 6b, 7a, 7b
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
Plant zones
Oklahoma last frost
Oklahoma 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 Oklahoma
Oklahoma ranges from Zone 6a in the Panhandle to Zone 7b in the southeast. Hot summers and mild winters. Long growing season for warm-season crops.
Frequently asked questions
Can you grow Rhubarb in Oklahoma?
Rhubarb thrives here — it is extremely cold-hardy and needs cold winters to perform well.
What zone is Oklahoma?
Oklahoma spans USDA Zone 7a (6a, 6b, 7a, 7b).
When do you plant Rhubarb in Oklahoma?
See the planting guide for Rhubarb — timing depends on your exact frost date.