Knotweed (Polygonum douglasii)

Family: Polygonaceae | Edibility: Edible (2/5)

Polygonum douglasii is a ANNUAL growing to 0.3 m (1ft). The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.

Edible Parts & Harvest Seasons

Edible Parts: Nuts/Seeds, Leaves

Harvest Seasons: Spring, Early Summer, Late Summer, Fall, Winter

Flavor & Culinary Uses

Leaves - raw or cooked. Seed - dried then ground into a powder and mixed with cornmeal or other cereals for making bread etc. The seed is rather small and fiddly to utilize, it is enclosed in a dry papery hull. — Leaves - raw or cooked.; Seed - dried then ground into a powder and mixed with cornmeal or other cereals for making bread etc.; The seed is rather small and fiddly to utilize, it is enclosed in a dry papery hull.

Habitat & North American Range

Rocky slopes and dry soils all over N. America. (Zone 4, Zone 5, Zone 6, Zone 7, Zone 8)