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Giant Rhubarb

Gunnera manicata, Gunneraceae

Zones
7–10
Lifespan
Perennial
Growth
Moderate

Growing Conditions

Soil pH

5.5 – 7

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Umbrella PlantDarmera peltata
Shade ProvisionNutrient Accumulation
Yellow Wax BellsKirengeshoma palmata
Shade ProvisionWind Protection

Antagonistic Plants

Japanese PrimrosePrimula japonica

Giant rhubarb creates dense shade and has extensive root system that outcompetes smaller plants like primulas

Cupids DartCatananche caerulea

Giant rhubarb completely overwhelms cupid's dart through massive size and resource competition

Common Questions

What zones does Giant Rhubarb grow in?

Giant Rhubarb grows in USDA hardiness zones 7 through 10.

What are good companion plants for Giant Rhubarb?

Good companions for Giant Rhubarb include Umbrella Plant, Yellow Wax Bells.

Design guilds with Giant Rhubarb and see companion relationships visually.

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