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Can You Grow Rhubarb in Arizona?

US · USDA Zone 9a · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a

Won't grow here

Rhubarb needs cold winters to break dormancy and struggles in warm climates.

Plant zones

2a–8a

Arizona last frost

late January

Arizona first frost

late December

Days to harvest

Perennial

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.

Full rhubarb growing guide →

Gardening in Arizona

Arizona spans dramatic climate zones from cool mountain forests to hot desert. Low-elevation cities like Phoenix grow year-round; high-elevation areas are Zone 5-6.

See what grows well in Arizona →

Frequently asked questions

Can you grow Rhubarb in Arizona?

Rhubarb needs cold winters to break dormancy and struggles in warm climates.

What zone is Arizona?

Arizona spans USDA Zone 9a (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a).

When do you plant Rhubarb in Arizona?

See the planting guide for Rhubarb — timing depends on your exact frost date.