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Lowland loosestrife

Lythrum flagellare

Last reviewed: September 2026

Lowland loosestrife (Lythrum flagellare) is a perennial forb native to FL. It blooms in March, April, May, and June. The flowers draw native bees.

Lowland loosestrife (Lythrum flagellare)
Photo: (c) Claire Herzog, some rights reserved (CC BY)

Toxicity unknown

Lowland loosestrife (Lythrum flagellare) 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

full sun

Water

high

Size

2"–6" H × 12"–24" W

Bloom

Mar, Apr, May, Jun

Native to

FL

Pollinators

native bees

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 458 programs across 44 states, each with a link to the provider and the date we last checked it.

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Lowland loosestrife.

Browse plants for this ecoregion

A low, trailing perennial with small opposite leaves and tiny pink flowers scattered along creeping stems. It grows in seasonally wet pine flatwoods, forming a thin groundcover close to the soil.

Growing Lowland loosestrife

Grow Lowland loosestrife in full sun and high water. Mature plants reach 2 to 6 inches tall and spread 12 to 24 inches wide.

Wildlife value

Its small flowers provide minor nectar for native bees in its specialized wetland habitat.

Common questions

How much sun does Lowland loosestrife need?
Lowland loosestrife grows best in full sun conditions.
When does Lowland loosestrife bloom?
Lowland loosestrife blooms in March, April, May, and June.
Where is Lowland loosestrife native?
Lowland loosestrife (Lythrum flagellare) is native to FL, per the World Checklist of Vascular Plants (Kew).
What pollinators does Lowland loosestrife attract?
Lowland loosestrife draws native bees.

Native range data from the World Checklist of Vascular Plants (Kew). 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 Lowland loosestrife? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.