Polygonum douglasii aka Douglas's Knotweed
Taxonomy
Common names
Douglas's Knotweed, Douglas' KnotweedHow to care for Douglas's Knotweed
Lighting
To ensure optimal growth, the Douglas's Knotweed prefers bright diffused light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.
Toxicity
The toxicity level of this plant has not been officially confirmed by Ploi. If there is a possibility of ingestion of plant material with an uncertain toxicity by you, a family member, or a pet, it is advisable to seek the assistance of a medical professional.
Region of origin
Douglas's Knotweed’s native range is N. America - Northwest Territory to British Columbia, south to Vermont, New Mexico and Oklahoma.
More info:
Wikipedia
More Species in Polygonum Genus

Polygonum bistorta
Polygonum arenarium Lesser Red Knotgrass

Polygonum bellardii Narrowleaf Knotweed
Polygonum equisetiforme Horsetail Knotweed

Polygonum aviculare Knotgrass
Polygonum maritimum Sea Knotgrass

Polygonum orientale

Polygonum arenastrum Oval Leaf Knotweed

Polygonum oxyspermum Strand Vogelknterich
