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Pale Persicaria Persicaria lapathifolia (L.) Delarbre (syn. Polygonum lapathifolium L.. Found in Riga town, Latvia)

Photo: Sanja565658 (CC BY-SA 3.0), via Wikimedia Commons

Curlytop Knotweed

Polygonum lapathifolium

Curlytop Knotweed (Polygonum lapathifolium) is a landscape plant valued for its form and structure as much as its bloom. Curlytop Knotweed is sized and grown for a real yard, not a show bench. Match it to full sun to part shade and water it in for the first season while roots establish. One caveat: like any plant, its published range is a guideline, not a guarantee, for the specific microclimate of your yard. Given a spot that matches its light and water needs, it is a dependable, low-drama addition to the yard.

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Hardiness range

A hardiness zone is not on file for this plant yet, and a ZIP-level fit check is not available for it.

How it does in your yard

HabitNot recorded
Hardiness zoneNot recorded
Native to the USNot recorded
ToxicityNot recorded

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Questions

Is Curlytop Knotweed native to the United States?

USDA PLANTS data does not record Curlytop Knotweed as native to the United States.

What USDA hardiness zone does Curlytop Knotweed need?

A minimum hardiness zone is not on file for Curlytop Knotweed yet.