Loosestrife
Lysimachia vulgaris
Last reviewed: June 2026
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.
Common questions
- How much sun does Loosestrife need?
- Loosestrife grows best in part sun conditions.
- When does Loosestrife bloom?
- Loosestrife blooms in June, July, and August.
- Where is Loosestrife native?
- Loosestrife (Lysimachia vulgaris) is native to KY, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Loosestrife attract?
- Loosestrife draws bees, beetles, and flies.
- Is Loosestrife HOA-friendly?
- Loosestrife 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 Loosestrife? 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