Prostrate knotweed
Polygonum aviculare
Polygonum
Polygonaceae
Native Plants
Zone 4–10
🐾 Pet-Safe
🌱 Beginner Friendly
Prostrate knotweed is an extremely hardy groundcover that thrives in poor, compacted soils where other plants fail. This low-growing annual readily self-seeds and requires virtually no care once established. Useful for stabilizing soil in harsh conditions but can become weedy in garden settings.
Care Requirements
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
24″ – 60″
Soil
loam
Life Cycle
Perennial
Spacing
6″
Watering Schedule
Every 10-14 Days • Water Sparingly, Very Drought Tolerant Once Established
Soil pH
5.5 – 6.5
Temperature
-30° – 95°F
Mature Spread
up to 12″
Root Depth
Medium
Foliage
Medium
Propagation: Seed
Ecology & Origin
Native to
Afghanistan
Alabama
Alaska
Albania
Alberta
Algeria
Altay
Amur
Angola
Argentina Northeast
Argentina Northwest
Argentina South
Arizona
Arkansas
Austria
Azores
Baleares
Baltic States
Belarus
Belgium
Attracts
🐝 Birds
Safety & Use
⚕ Medicinal
🐾 Pet-safe
Sources
Data: trefle, usda
Image: trefle.io — Taken Oct 15, 2022 by Kai Best (cc-by-sa)
Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Available From (1)
Culver Canopy Plants
9 in stock5gal
pickup
selfDelivery
$70.86