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Bitter Dock

Rumex obtusifolius

Last reviewed: June 2026

Bitter Dock (Rumex obtusifolius)
Photo: Johann Georg Sturm (Painter: Jacob Sturm) / Wikimedia Commons (Public domain)

Light

full sun

Water

medium

Size

24"–48" H × 12"–24" W

Bloom

Jun, Jul, Aug

Native to

WV

Pollinators

bees, beetles

Bitter dock is a tall perennial herb with large, broad leaves and distinctive reddish-brown seed spikes that develop in summer. This robust plant forms clumps and can spread aggressively if not managed, often appearing in disturbed soils and meadows.

In an HOA neighborhood

Bitter Dock takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Often considered a weed due to aggressive spreading
  • Can look untidy with large basal leaves
  • May self-seed prolifically in unwanted areas

Wildlife value

The flowers attract bees and beetles during summer blooming. Seeds provide food for birds and small mammals in fall.

Common questions

How much sun does Bitter Dock need?
Bitter Dock grows best in full sun conditions.
When does Bitter Dock bloom?
Bitter Dock blooms in June, July, and August.
Where is Bitter Dock native?
Bitter Dock (Rumex obtusifolius) is native to WV, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Bitter Dock attract?
Bitter Dock draws bees and beetles.
Is Bitter Dock HOA-friendly?
Bitter Dock takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Bitter Dock? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz