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PlantFiles: Annual Smartweed, Marshpepper Knotweed, Mild Water Pepper, Akatade
Persicaria hydropiper

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Family: Polygonaceae
Genus: Persicaria (per-sih-KAR-ee-uh) (Info)
Species: hydropiper

Synonym:Polygonum hydropiper
Synonym:Polygonum hydropiper var. projectum

One vendor has this plant for sale.

Category:
Annuals
Herbs

Height:
under 6 in. (15 cm)
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
Unknown - Tell us

Hardiness:
Unknown - Tell us

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Pale Green
Green

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

Foliage:
Unknown - Tell us

Other details:
May be a noxious weed or invasive
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored

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to view:

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There are a total of 8 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Windy On Jan 22, 2005, Windy from Belleville , IL (Zone 6b) wrote:

I leave these weeds alone. The Japanese Beetles seem to love these and leave more desirable plants alone.
They seem to like all the polygonum family.

Regional...

This plant has been said to grow in the following regions:

Saint Michael, Minnesota
Cole Camp, Missouri



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