North America Native Plant

Longleaf Starwort

Botanical name: Stellaria longifolia var. atrata

USDA symbol: STLOA2

Life cycle: perennial

Habit: forb

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

Synonyms: Stellaria atrata (J.W. Moore) B. Boivin (STAT)   

Longleaf Starwort: A Delicate Native Ground Cover for Northern Gardens If you’re looking for a charming native ground cover that thrives in cooler climates, longleaf starwort (Stellaria longifolia var. atrata) might just be the perfect addition to your garden. This delicate perennial forb brings understated elegance to naturalized landscapes while ...

Longleaf Starwort: A Delicate Native Ground Cover for Northern Gardens

If you’re looking for a charming native ground cover that thrives in cooler climates, longleaf starwort (Stellaria longifolia var. atrata) might just be the perfect addition to your garden. This delicate perennial forb brings understated elegance to naturalized landscapes while supporting local ecosystems.

What is Longleaf Starwort?

Longleaf starwort is a native perennial forb that belongs to the carnation family. As a herbaceous plant, it lacks woody tissue above ground and returns each year from its root system. Don’t let its delicate appearance fool you – this hardy native is well-adapted to northern climates and can be a valuable addition to the right garden setting.

Where Does Longleaf Starwort Grow Naturally?

This native beauty calls both Canada and the northern United States home. You’ll find it growing naturally across several Canadian provinces including Alberta, Manitoba, Ontario, Quebec, and the Northwest Territories. In the U.S., it’s native to Minnesota and Wisconsin, making it perfectly suited for gardeners in these northern regions.

Why Plant Longleaf Starwort in Your Garden?

There are several compelling reasons to consider this native plant:

  • Native plant benefits: Supporting local ecosystems by choosing plants that evolved in your region
  • Low maintenance: Once established, native plants typically require less water and care
  • Pollinator support: The small white star-shaped flowers attract beneficial insects
  • Ground cover potential: Creates a naturalized carpet in woodland settings
  • Cold hardy: Thrives in northern climates where many other plants struggle

Growing Conditions and Garden Design

Longleaf starwort is best suited for naturalized woodland gardens and native plant landscapes. It prefers:

  • Partially shaded locations
  • Moist, well-draining soil
  • Cool, northern climates (likely USDA zones 2-6)
  • Natural or informal garden settings

This plant works wonderfully as a ground cover in woodland gardens, native plant borders, or naturalized areas where you want to recreate the look of a northern forest floor.

Planting and Care Tips

Growing longleaf starwort successfully is relatively straightforward:

  • Planting time: Spring or early fall when temperatures are cool
  • Soil preparation: Ensure good drainage while maintaining consistent moisture
  • Spacing: Allow room for natural spreading as a ground cover
  • Watering: Keep consistently moist, especially during establishment
  • Maintenance: Minimal care needed once established; may self-seed in ideal conditions

Is Longleaf Starwort Right for Your Garden?

This native plant is an excellent choice if you’re gardening in its natural range and want to create a naturalized woodland setting. It’s particularly well-suited for gardeners who:

  • Live in northern climates
  • Want to support native ecosystems
  • Prefer low-maintenance ground covers
  • Are creating woodland or naturalized gardens
  • Value subtle, delicate flowers over showy blooms

However, it may not be the best choice for formal gardens, hot climates, or situations where you need a more robust or colorful ground cover.

The Bottom Line

Longleaf starwort offers northern gardeners a chance to incorporate a truly native ground cover into their landscapes. While it may not be the showiest plant in your garden, its ecological value and adaptation to local conditions make it a worthwhile addition to naturalized plantings. If you’re looking to create a piece of authentic northern woodland in your yard, this delicate native deserves serious consideration.

Longleaf Starwort

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Caryophyllaceae Juss. - Pink family

Genus

Stellaria L. - starwort

Species

Stellaria longifolia Muhl. ex Willd. - longleaf starwort

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