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Loosestrife

Lysimachia vulgaris

Last reviewed: June 2026

Loosestrife (Lysimachia vulgaris)
Photo: Robert Flogaus-Faust / Wikimedia Commons (CC BY 4.0)

Light

part sun

Water

high

Size

24"–48" H × 12"–24" W

Bloom

Jun, Jul, Aug

Native to

KY

Pollinators

bees, beetles, flies

Garden loosestrife is a tall perennial with bright yellow flower spikes that bloom throughout summer. It thrives in moist to wet conditions and can spread to form colonies over time. The plant dies back completely in winter, leaving bare ground until spring growth emerges.

In an HOA neighborhood

Loosestrife 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.

  • Can spread aggressively and look weedy
  • Dies back completely leaving bare patches
  • May be confused with invasive purple loosestrife

Wildlife value

The cheerful yellow flowers attract bees, beneficial beetles, and flies during the long summer blooming period. Its extended bloom time provides consistent nectar resources when many other flowers have finished.

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.

Does Loosestrife fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.