Giant Knotweed

Reynoutria sachalinensis

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Polygonaceae
Genus:
Reynoutria
Species:
Reynoutria sachalinensis

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
12-20 ft
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jul, sep
Bloom Colors:
white

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
native to riverbanks and moist areas