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PlantFiles: Weyrich's Knotweed
Persicaria weyrichii

 
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Family: Polygonaceae
Genus: Persicaria (per-sih-KAR-ee-uh) (Info)
Species: weyrichii (wey-RIK-ee-eye) (Info)

Synonym:Polygonum weyrichii
Synonym:Aconogonon weyrichii

Category:
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 5b: to -26.1 °C (-15 °F)

Sun Exposure:
Sun to Partial Shade
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Foliage:
Unknown - Tell us

Other details:
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Bag seedheads to capture ripening seed

By arsenic
Thumbnail #1 of Persicaria weyrichii by arsenic

No details have been posted.



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