Dune Knotweed (Polygonum Paronychia) is a perennial shrub in the Polygonaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Polygonum paronychia is a species of flowering plant in the knotweed family native to the western coast of North America, characterized by its growth in sandy coastal habitats.

Dune Knotweed

Dune Knotweed

Polygonum Paronychia

Polygonum paronychia is a species of flowering plant in the knotweed family native to the western coast of North America, characterized by its growth in sandy coastal habitats.

Quick Facts

Type
shrub
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, loamy
Indoor:No
Outdoor:Yes
Garden Use:groundcover, erosion control, habitat restoration

Care Calendar

Monthly care tasks for Dune Knotweed

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Dune Knotweed
Dune Knotweed detail

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Taxonomy

Family:Polygonaceae
Genus:Polygonum