How much sun does Pink Smartweed need?

Pink Smartweed grows best in part sun conditions.

When does Pink Smartweed bloom?

Pink Smartweed blooms in July, August, and September.

Where is Pink Smartweed native?

Pink Smartweed (Persicaria bicornis) is native to AR, CO, IA, IL and 10 more states, per the USDA PLANTS Database and regional native plant society lists.

What pollinators does Pink Smartweed attract?

Pink Smartweed draws bees and butterflies.

Is Pink Smartweed HOA-friendly?

Pink Smartweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Pink Smartweed

Name: Pollinator Patch
Author: Pollinator Patch

Persicaria bicornis

Last reviewed: June 2026

Light

part sun

Water

medium

Size

24"–48" H × 12"–24" W

Bloom

Jul, Aug, Sep

Native to

AR, CO, IA, IL and 10 more states

Pollinators

bees, butterflies

Browse plants for this ecoregion

Central Oklahoma/Texas Plains Texas Blackland Prairies East Central Texas Plains Western Gulf Coastal Plain South Central Plains

Persicaria bicornis is a medium-height perennial forb that produces clusters of small flowers from July through September. This native plant thrives in partial sun conditions with moderate water needs and forms neat clumps 2-4 feet tall.

In an HOA neighborhood

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

Works well in: backyard only.

Obscure species unfamiliar to most homeowners
May appear weedy or unkempt to conventional gardeners
Limited availability makes it difficult to establish consistently

Wildlife value

The summer blooms attract bees and butterflies, providing nectar during the peak growing season. This plant supports pollinators when many other native flowers are also in bloom.

Common questions

How much sun does Pink Smartweed need?: Pink Smartweed grows best in part sun conditions.
When does Pink Smartweed bloom?: Pink Smartweed blooms in July, August, and September.
Where is Pink Smartweed native?: Pink Smartweed (Persicaria bicornis) is native to AR, CO, IA, IL and 10 more states, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Pink Smartweed attract?: Pink Smartweed draws bees and butterflies.
Is Pink Smartweed HOA-friendly?: Pink Smartweed 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 Pink Smartweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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