North America Native Plant

Swallen’s Lovegrass

Botanical name: Eragrostis swallenii

USDA symbol: ERSW

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Swallen’s Lovegrass: A Rare Texas Native Worth Protecting If you’re passionate about native plants and conservation, Swallen’s lovegrass might just capture your heart—though you’ll need to be extra thoughtful about how you approach growing this special Texas native. This perennial grass represents something truly precious in the plant world: a ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Swallen’s Lovegrass: A Rare Texas Native Worth Protecting

If you’re passionate about native plants and conservation, Swallen’s lovegrass might just capture your heart—though you’ll need to be extra thoughtful about how you approach growing this special Texas native. This perennial grass represents something truly precious in the plant world: a species that’s hanging on in our wild spaces but needs our help to thrive.

What Makes Swallen’s Lovegrass Special?

Swallen’s lovegrass (Eragrostis swallenii) belongs to the lovegrass family, a group known for their delicate, cloud-like seed heads that dance beautifully in the breeze. As a perennial grass native to Texas, this species has adapted to the unique conditions of the Lone Star State over thousands of years.

What truly sets this plant apart isn’t just its beauty—it’s its rarity. With a global conservation status of S3, Swallen’s lovegrass is considered vulnerable, with only 21 to 100 known occurrences and an estimated 3,000 to 10,000 individuals remaining in the wild. That makes every single plant incredibly valuable for conservation efforts.

Where Does It Grow?

This rare gem calls Texas home, where it has carved out specific niches in the state’s diverse landscapes. Its limited distribution makes it a true Texas treasure—a plant that exists nowhere else in the world.

Should You Grow Swallen’s Lovegrass?

Here’s where things get interesting (and important). While we absolutely encourage supporting native plants, Swallen’s lovegrass requires a very special approach due to its vulnerable status. If you’re considering adding this species to your garden, please keep these crucial points in mind:

  • Source responsibly: Only obtain plants or seeds from reputable native plant societies or conservation organizations
  • Never collect from the wild: Every plant in nature is precious for the species’ survival
  • Consider alternatives: Other Texas native lovegrass species can provide similar benefits while being more readily available
  • Support conservation: Consider contributing to organizations working to protect rare Texas plants

Growing Conditions and Care

While specific growing information for Swallen’s lovegrass is limited due to its rarity, we can draw insights from its native Texas habitat and related lovegrass species:

  • Climate: Adapted to Texas conditions, likely suitable for warm, humid to semi-arid climates
  • Soil: Probably adaptable to various soil types, as most lovegrasses are quite versatile
  • Water: Once established, likely drought-tolerant like most Texas natives
  • Sun: Most lovegrasses prefer full sun to partial shade

The Bigger Picture: Why Rare Plants Matter

Growing rare natives like Swallen’s lovegrass isn’t just about having something unique in your garden—it’s about becoming part of a conservation story. These plants provide:

  • Genetic diversity that helps ecosystems adapt to changing conditions
  • Specialized habitat for insects and wildlife that may depend on them
  • Living connections to Texas’s natural heritage
  • Opportunities for scientific study and conservation breeding programs

Native Alternatives to Consider

If you love the idea of lovegrasses but want something more readily available, consider these beautiful Texas natives:

  • Purple lovegrass (Eragrostis spectabilis)
  • Sand lovegrass (Eragrostis trichodes)
  • Plains lovegrass (Eragrostis intermedia)

The Bottom Line

Swallen’s lovegrass represents both the beauty and fragility of our native plant heritage. While it’s a species worth celebrating and protecting, approach it with the respect and care that any vulnerable species deserves. Whether you choose to grow this rare gem (responsibly sourced, of course) or select one of its more common relatives, you’ll be supporting Texas’s incredible botanical diversity and creating habitat for the creatures that call these grasslands home.

Remember, every native plant you grow—rare or common—is a small act of conservation that ripples outward to benefit your local ecosystem. Now that’s something worth getting excited about!

Swallen’s Lovegrass

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Eragrostis von Wolf - lovegrass

Species

Eragrostis swallenii Hitchc. - Swallen's lovegrass

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