WSU Clark County Extension
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Gunnera

Scientific name: Gunnera tinctoria
Taxonomy
Family:Gunneraceae
Type:Herbaceous perennials
Native:NO
Plant Requirements
Zone:4 to 8
Sun:Full to partial sun
Moisture:Wet
Plant Characteristics
Height:6 ft
Width:6 ft
Bloom:Spring flowers
Bloom Time:May to June
Bloom Color:Green
Additional Characteristics
Trees


Fruit

Leaves


Bark
Wildlife value

Poisonous
Description No hardy perennial can compete with the likes of the so-called Giant Rhubarb as Gunnera is called. Often found along side the edges of lakes or ponds where wet conditions prevail. Truly a conversation plant for the Northwest gardener!

  Morphology:
Gunnera is herbaceous perennial that can grow to a height of more 4’-6’ with large leaves (4’ across!). Leaves are conspicouously veined, with prominent lobes and cut edges. Leaves are borne on prickly stems. Flower stalks resemble corncobs and grow close to the roots, appearing beneath the leaves. Tiny red fruits are borne on the flowers.

  Adaptation:
Gunnera likes ample water (not soggy) and a rich organic site in order to thrive. Full to partial sun is ideal.

  Pests:
None reported.
For assistance, contact Dr. Charles Brun (brunc@wsu.edu), (360) 397-6060 5701
Computing and Web Resources, PO Box 6234, Washington State University, Pullman WA 99164-6234