Bitter Dock (Rumex Obtusifolius) is a perennial herb in the Polygonaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Rumex obtusifolius, commonly known as Bitter Dock or Broad-leaved Dock, is a perennial herbaceous plant recognized for its large, broad leaves and tall flowering stalks.

Bitter Dock

Bitter Dock

Rumex Obtusifolius

Rumex obtusifolius, commonly known as Bitter Dock or Broad-leaved Dock, is a perennial herbaceous plant recognized for its large, broad leaves and tall flowering stalks.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
3-9

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:clay, loamy, sandy, silty
Indoor:No
Outdoor:Yes
Garden Use:groundcover, biodiversity support

Care Calendar

Monthly care tasks for Bitter Dock

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

Bitter Dock
Bitter Dock detail

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Taxonomy

Family:Polygonaceae
Genus:Rumex