Persicaria Species, Smartweed, Marshpepper Knotweed, Water Pepper
Persicaria hydropiper
| Family: | Polygonaceae |
| Genus: | Persicaria (per-sih-KAR-ee-uh) (Info) |
| Species: | hydropiper |
Category:
Annuals
Herbs
Water Requirements:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Sun Exposure:
Full Sun
Sun to Partial Shade
Foliage:
Foliage Color:
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:
Hardiness:
Where to Grow:
Danger:
Handling plant may cause skin irritation or allergic reaction
Bloom Color:
Pale Green
Chartreuse (yellow-green)
Bloom Characteristics:
Bloom Size:
Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Other details:
May be a noxious weed or invasive
Soil pH requirements:
Patent Information:
Propagation Methods:
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored
Regional
This plant has been said to grow in the following regions:
Saint Michael, Minnesota
Cole Camp, Missouri
Gardeners' Notes:
| Rating | Content |
|---|---|
| Positive | 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. |
