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botanical name:
Petasites japonicus var. giganteus
Petasites japonicus var. giganteus © Deeproot Plant Base
common name:  Giant butterbur
family:  Asteraceae
characteristics: perennial, ground-cover
height: 1.50m
width: 1.50m
growth rate: very fast
growth habit:
leaf colour: green
flower colour: cream
main season: Summer
aspect: part shade, shade
conditions: wet/waterlogged soil, clay soil
preferred soil pH: any
minimum temp: -20°C
USDA zone: 6 to 8
description:
Huge dramatic round leaves. Vigorous moisture loving perennial that can become invasive but is useful for foliage effect in the right situation. Strange creamy flowers appear before the leaves.

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