Slender Knotweed (Persicaria Decipiens) is a annual or perennial herb in the Polygonaceae family with moderate care difficulty. It requires medium to high watering and full sun or partial shade light in USDA hardiness zones 8-11. This plant is safe for cats and dogs.

A slender, weak-stemmed annual or perennial herb with stems up to 120 cm long that can be erect or grow along the ground, rooting at the nodes.

Slender Knotweed

Slender Knotweed

Persicaria Decipiens

A slender, weak-stemmed annual or perennial herb with stems up to 120 cm long that can be erect or grow along the ground, rooting at the nodes.

Quick Facts

Type
herb
Lifecycle
annual or perennial
Care Difficulty
Moderate
Water Needs
medium to high
Light
Full Sun, Partial Shade
Hardiness Zones
8-11

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, silty, peaty
Indoor:No
Outdoor:Yes
Garden Use:groundcover, erosion control

Care Calendar

Monthly care tasks for Slender 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

Slender Knotweed
Slender Knotweed detail

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Taxonomy

Family:Polygonaceae
Genus:Persicaria