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Fringed Loosestrife

Lysimachia ciliata

Last reviewed: August 2026

Fringed Loosestrife is a perennial forb that blooms from June through August with nodding yellow flowers, growing well in moist meadows, streambanks, and woodland edges across much of the eastern and central United States.

Fringed Loosestrife (Lysimachia ciliata)
Photo: (c) er-birds, some rights reserved (CC BY), uploaded by er-birds

Toxicity unknown

Fringed Loosestrife (Lysimachia ciliata) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

medium

Size

12"–36" H × 12"–24" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CO, CT and 39 more states

Pollinators

bees, flies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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Fringed loosestrife is a native wildflower that produces cheerful yellow blooms from June through August. This medium-sized perennial thrives in partial shade with moderate moisture, making it useful for areas where other flowering plants might struggle.

Growing Fringed Loosestrife

Grow Fringed Loosestrife in part shade and medium water. Mature plants reach 12 to 36 inches tall and spread 12 to 24 inches wide. Expect high maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

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

Works well in: backyard only.

  • Spreads aggressively by underground rhizomes
  • Can appear weedy and informal
  • May be confused with non-native invasive loosestrifes

Wildlife value

The bright yellow flowers attract bees and flies during the summer months. This native plant provides nectar resources when many other wildflowers have finished blooming.

Common questions

When does Fringed Loosestrife bloom?
Fringed Loosestrife typically flowers from June through August, producing small yellow, star-shaped blooms on arching stems.
What pollinators visit Fringed Loosestrife?
Bees and flies are the primary visitors to Fringed Loosestrife, drawn to its yellow flowers during the summer bloom period.
How much light does Fringed Loosestrife need?
This plant grows in full sun to part shade, with the most vigorous flowering typically seen where it gets at least a few hours of direct sun.
How much water does Fringed Loosestrife need?
Fringed Loosestrife prefers medium to consistently moist soil and tolerates wetter sites such as streambanks and low meadows better than dry ground.
Is Fringed Loosestrife deciduous?
Yes, it is an herbaceous perennial forb that dies back to the ground each fall and regrows from its roots in spring.
Is Fringed Loosestrife HOA-friendly?
Fringed Loosestrife takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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

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