Flower Giant Knotweed
Latin name: Polygonum sachalinense, Fallopia sachalinensis
white
click photo to enlarge
flower color white
life span perennial
landscape use hedge, specimen, border
timing of flowering august, july
soil acidity neutral soil
soil type sandy loam soil, loamy soil
water needs moderate
light needs semi-shade, full sun
cold hardiness zone 4 (-34 to -29°C) , 5 (-29 to -23°C) , 6 (-23 to -18°C) , 7 (-18 to -12°C) , 8 (-12 to -7°C) , 9 (-7 to -1°C)
method of cultivation non seedlings
poisonous or toxic not poisonous plant
type of stem erect
fragrant flower fragrance
shelter in winter shelter is not required
plant height (cm) higher 100 cm
flower size small
frost resistance frost resistance
*Some characteristics are relevant for a temperate climate
Flower Giant Knotweed photo
catalog: Garden Flowers
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