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Harvestlice

Agrimonia parviflora

Last reviewed: June 2026

Agrimonia parviflora (Harvestlice) is a native forb blooming June through September across eastern and central United States. This adaptable wildflower attracts bees and beetles with small yellow flower spikes.

Harvestlice (Agrimonia parviflora)
Photo: (c) Michael J. Papay, some rights reserved (CC BY), uploaded by Michael J. Papay

The USDA PLANTS Database (opens in new tab) does not flag Harvestlice as toxic to livestock.

Light

part sun

Water

medium

Size

24"–48" H × 12"–24" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, CT, DE and 28 more states

Pollinators

bees, beetles

Browse plants for this ecoregion

Swamp agrimony is a native perennial wildflower that produces small yellow flowers on tall, slender spikes from summer into fall. This woodland edge plant forms loose clumps and has compound leaves that turn golden in autumn.

Growing Harvestlice

Grow Harvestlice in part sun and medium water. Mature plants reach 24 to 48 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Harvestlice 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.

  • Tall, informal growth habit looks too wild for most front yards
  • Small flowers and narrow spikes lack visual impact
  • Can appear weedy or unkempt to conventional landscaping standards

Wildlife value

The long blooming period provides nectar for native bees and beneficial beetles throughout the growing season. Seeds may attract small birds in late fall.

Common questions

When does Agrimonia parviflora bloom?
Harvestlice blooms from June through September, producing small yellow flowers arranged in tall, slender spikes.
What pollinators visit Agrimonia parviflora?
Bees and beetles are the primary pollinators of Harvestlice, attracted to its small but numerous yellow flowers.
Where is Agrimonia parviflora native?
Harvestlice is native to much of the eastern and central United States, from the Southeast through the Great Plains and up to southern New England.
What growing conditions does Agrimonia parviflora prefer?
This adaptable native forb tolerates a wide range of light conditions from full sun to partial shade and grows in various moisture levels from dry to moist soils.
Is Harvestlice toxic to livestock?
The USDA PLANTS Database does not flag Harvestlice as toxic to livestock.
Is Harvestlice HOA-friendly?
Harvestlice 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 Harvestlice? 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