North America Native Plant

Lanceleaf Loosestrife

Botanical name: Lysimachia lanceolata

USDA symbol: LYLA

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Lysimachia lanceolata Walter var. angustifolia (Lam.) A. Gray (LYLAA)  âš˜  Steironema heterophyllum (Michx.) Baudo (STHE7)  âš˜  Steironema lanceolatum (Walter) A. Gray (STLA13)   

Lanceleaf Loosestrife: A Hidden Gem for Native Plant Enthusiasts Meet lanceleaf loosestrife (Lysimachia lanceolata), a charming native perennial that’s been quietly brightening North American landscapes for centuries. While it might not have the flashy reputation of more popular native plants, this unassuming wildflower deserves a spot in your garden—especially if ...

Rare plant alert!

Region: New Jersey

Status: Endangered, Listed Pinelands, Highlands Listed, S1: New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Lanceleaf Loosestrife: A Hidden Gem for Native Plant Enthusiasts

Meet lanceleaf loosestrife (Lysimachia lanceolata), a charming native perennial that’s been quietly brightening North American landscapes for centuries. While it might not have the flashy reputation of more popular native plants, this unassuming wildflower deserves a spot in your garden—especially if you’re passionate about supporting local ecosystems and creating naturalized spaces.

What Makes Lanceleaf Loosestrife Special?

This delightful native forb stands out with its lance-shaped leaves and cheerful purple flowers that bloom in late spring. Growing to about 2.5 feet tall, it forms spreading colonies through underground rhizomes, making it an excellent choice for naturalizing larger areas. Despite what the plant form data suggests about purple flowers, most sources indicate this species typically produces yellow blooms, so you may encounter some variation in flower color.

As a true North American native, lanceleaf loosestrife calls both Canada and the lower 48 states home. You’ll find it growing naturally across a impressive range of states including Alabama, Arkansas, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Michigan, Mississippi, Missouri, New Jersey, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin, plus the Canadian provinces of Manitoba and Ontario.

A Plant Worth Protecting

Here’s something important to know: in New Jersey, lanceleaf loosestrife is listed as endangered with a rarity status of S1, meaning it’s critically imperiled in the state. If you’re gardening in New Jersey or other areas where it might be rare, this makes it an especially valuable addition to your landscape—but only when sourced responsibly from reputable native plant nurseries, never collected from the wild.

Perfect for Flexible Gardeners

One of lanceleaf loosestrife’s best qualities is its adaptability. With a wetland status of facultative across all regions, this plant is equally happy in wet soils and drier conditions. This flexibility makes it perfect for:

  • Rain gardens that experience both wet and dry periods
  • Woodland edges with variable moisture
  • Native plant borders
  • Naturalized meadow areas
  • Areas where you want low-maintenance groundcover

Growing Conditions That Make It Happy

Lanceleaf loosestrife is refreshingly easy-going about its growing conditions. It adapts well to coarse, medium, and fine-textured soils and tolerates a pH range from 5.0 to 7.0. The plant shows medium drought tolerance once established and can handle shade beautifully, making it ideal for those tricky spots under trees where other plants struggle.

This hardy perennial can withstand temperatures as low as -23°F and needs at least 120 frost-free days to complete its growing cycle. It requires moderate moisture and fertility levels—nothing too demanding for most gardeners.

Planting and Care Made Simple

Getting started with lanceleaf loosestrife is straightforward, though you might need to be patient in sourcing it since commercial availability is currently limited. The plant can be propagated by seed or sprigs, with seeds showing medium abundance during summer through fall.

Here are some key growing tips:

  • Plant in spring after the last frost
  • Space plants 2-3 feet apart (roughly 2,700-4,800 plants per acre for large installations)
  • Provide moderate moisture during establishment
  • Expect moderate growth rates—it’s not a quick spreader but will steadily expand
  • Minimal maintenance required once established
  • No need for cold stratification of seeds

Supporting Pollinators and Wildlife

While specific wildlife benefits aren’t well-documented, like most native wildflowers, lanceleaf loosestrife likely provides nectar and pollen for native bees, flies, and other small pollinators during its blooming period. The seeds may also provide food for birds and small mammals, contributing to the overall health of your local ecosystem.

Is Lanceleaf Loosestrife Right for Your Garden?

This native gem is perfect for gardeners who appreciate subtle beauty and want to support local ecosystems without high maintenance demands. It’s especially valuable if you’re creating habitat gardens, dealing with challenging shade conditions, or looking for plants that can handle variable moisture levels.

Consider lanceleaf loosestrife if you’re working on naturalized areas, native plant gardens, or rain gardens. Its moderate spreading habit and adaptable nature make it an excellent choice for gardeners who want reliable, low-maintenance native plants that truly belong in the North American landscape.

Just remember: if you’re in an area where it’s rare (like New Jersey), source it responsibly and consider yourself a guardian of this special native plant. Your garden can become part of the conservation story while enjoying the quiet charm of this underappreciated wildflower.

Lanceleaf Loosestrife

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Primulales

Family

Primulaceae Batsch - Primrose family

Genus

Lysimachia L. - yellow loosestrife

Species

Lysimachia lanceolata Walter - lanceleaf loosestrife

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA