When does Angled Purple Loosestrife bloom?

Lythrum alatum blooms from June through August, producing purple flowers that attract various pollinators.

Where is Angled Purple Loosestrife native?

This species is native to 41 states spanning from Maine to Florida in the east, west to Colorado and Wyoming, and throughout the Great Lakes and Great Plains regions.

What pollinators visit Angled Purple Loosestrife?

Lythrum alatum attracts bees, butterflies, and beetles with its purple summer flowers.

What growing conditions does Angled Purple Loosestrife prefer?

This native forb grows best in full sun to partial sun with medium to high moisture levels, making it suitable for wetland gardens and rain gardens.

Is Angled Purple Loosestrife HOA-friendly?

Angled Purple Loosestrife is generally an HOA-friendly choice in the right placement, with low maintenance.

Angled Purple Loosestrife

Name: Pollinator Patch
Author: Pollinator Patch

Lythrum alatum

Last reviewed: July 2026

Lythrum alatum (Angled Purple Loosestrife) is a native forb producing purple flowers from June through August across much of eastern and central North America. This wetland plant attracts bees, butterflies, and beetles to its summer blooms.

Angled Purple Loosestrife (Lythrum alatum) — Photo: Reed, Chester A. / Wikimedia Commons (Public domain)

Light

full sun

Water

medium

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CO, CT and 34 more states

Pollinators

bees, butterflies, beetles

Browse plants for this ecoregion

Central Oklahoma/Texas Plains Edwards Plateau Texas Blackland Prairies East Central Texas Plains Western Gulf Coastal Plain South Central Plains

Angled purple loosestrife is a well-behaved native wildflower with slender spikes of small purple-pink flowers from June through August. This compact perennial forms neat clumps and works well in sunny gardens with average moisture.

Growing Angled Purple Loosestrife

Grow Angled Purple Loosestrife in full sun and medium water. Mature plants reach 12 to 36 inches tall and spread 6 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Angled Purple Loosestrife is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.

Works well in: mid zone, foundation.

Name association with invasive purple loosestrife may cause confusion
Can look sparse in winter as herbaceous perennial

Wildlife value

The flowers attract native bees, butterflies, and beneficial beetles throughout the summer blooming period. This native plant provides nectar resources during peak growing season.

Common questions

When does Angled Purple Loosestrife bloom?: Lythrum alatum blooms from June through August, producing purple flowers that attract various pollinators.
Where is Angled Purple Loosestrife native?: This species is native to 41 states spanning from Maine to Florida in the east, west to Colorado and Wyoming, and throughout the Great Lakes and Great Plains regions.
What pollinators visit Angled Purple Loosestrife?: Lythrum alatum attracts bees, butterflies, and beetles with its purple summer flowers.
What growing conditions does Angled Purple Loosestrife prefer?: This native forb grows best in full sun to partial sun with medium to high moisture levels, making it suitable for wetland gardens and rain gardens.
Is Angled Purple Loosestrife HOA-friendly?: Angled Purple Loosestrife is generally an HOA-friendly choice in the right placement, with low maintenance.

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 Angled Purple Loosestrife? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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