Persicaria virginiana var. filiformis (Thread-like Virginia knotweed)

Cultivation

Plant in any moist soil in sun or partial shade. Tends to self-seed so deadhead if necessary to avoid spread.

Suggested uses

Beds and borders, Cottage/Informal, Low Maintenance, Prairie planting

UK hardiness

H6

USDA zones

Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Upright, Clump-forming

Native to

Garden origin

Drought tolerant

No

Flood tolerant

No

Toxicity

Contact may irritate skin. Sap may cause mild stomach upset if ingested.