PatternBaseWeyrich's Knotweed
Polygonum weyrichii, Polygonaceae
Zones
4–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Fast
Guild Roles
Ground CoverMulch MakerDynamic Accumulator
Growing Conditions
Sun
Full Sun (preferred)Partial Shade (preferred)
Water
Moderate (established)High (seedling)
Soil pH
5 – 7.5
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Uses
Functions
Biomass ProductionSoil BuildingErosion ControlWinter CoverAllelopathic Weed Suppression
Edible Parts
Young ShootsLeaves
Common Questions
What zones does Weyrich's Knotweed grow in?
Weyrich's Knotweed grows in USDA hardiness zones 4 through 8.
What are good companion plants for Weyrich's Knotweed?
Good companions for Weyrich's Knotweed include Neglected Sweetvetch, Spreading Fanpetals.
Design guilds with Weyrich's Knotweed and see companion relationships visually.
Try PatternBase free