North America Native Plant

Rustyseed Paspalum

Botanical name: Paspalum langei

USDA symbol: PALA11

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Dimorpostachys langei Fourn. (DILA12)   

Rustyseed Paspalum: A Hidden Gem Among Native Southern Grasses If you’re on the hunt for native grasses to add authentic charm to your Southern landscape, you might want to get acquainted with rustyseed paspalum (Paspalum langei). This perennial grass may not be the showiest plant in the garden center, but ...

Rustyseed Paspalum: A Hidden Gem Among Native Southern Grasses

If you’re on the hunt for native grasses to add authentic charm to your Southern landscape, you might want to get acquainted with rustyseed paspalum (Paspalum langei). This perennial grass may not be the showiest plant in the garden center, but it’s got some serious native credentials that make it worth considering for the right garden situation.

Meet the Rustyseed Paspalum

Rustyseed paspalum belongs to the vast and diverse grass family, making it a true grass rather than just a grass-like impostor. As a perennial, this native beauty comes back year after year once established, which is always a win in my book. You might occasionally see it referenced by its synonym Dimorpostachys langei, but don’t let the fancy scientific names intimidate you – it’s still the same humble native grass.

Where Does It Call Home?

This grass is a true Southerner, naturally occurring across Florida, Louisiana, Oklahoma, and Texas. That’s quite a range, stretching from the humid Gulf Coast to the drier regions of Texas and Oklahoma, which tells us this plant has some serious adaptability up its sleeve.

Why Choose Rustyseed Paspalum for Your Garden?

Here’s where rustyseed paspalum really shines – it’s the real deal when it comes to native plants. Choosing native species like this one means you’re:

  • Supporting local ecosystems and wildlife that evolved alongside these plants
  • Likely reducing your maintenance workload since native plants are adapted to local conditions
  • Contributing to regional biodiversity and ecological health
  • Potentially reducing water and fertilizer needs compared to non-native alternatives

Garden Design Ideas

As a native grass, rustyseed paspalum works beautifully in naturalized areas, prairie-style gardens, or wildlife habitat plantings. It’s particularly well-suited for:

  • Native plant gardens that celebrate regional flora
  • Naturalized landscapes where you want that wild meadow feel
  • Erosion control on slopes or challenging sites
  • Buffer zones around more formal garden areas

Growing Rustyseed Paspalum Successfully

While specific growing information for rustyseed paspalum is somewhat limited (it’s not exactly a mainstream garden center star), we can make some educated guesses based on its native range and grass family traits.

Given its distribution across the South, this grass likely thrives in USDA hardiness zones 8-10, with possible tolerance into zone 7. The fact that it grows from the humid conditions of Florida and Louisiana to the more variable climate of Oklahoma and Texas suggests it’s fairly adaptable to different moisture levels and soil types.

Planting and Care Tips

Since rustyseed paspalum is a lesser-known native, you might need to do some detective work to find it. Try contacting:

  • Native plant societies in your area
  • Specialty native plant nurseries
  • Local botanical gardens or extension offices

Once you’ve tracked it down, treat it like most native grasses:

  • Plant in spring or fall for best establishment
  • Provide regular water during the first growing season
  • Avoid over-fertilizing – natives typically prefer lean soils
  • Be patient – many native grasses take a season or two to really get established

The Bottom Line

Rustyseed paspalum may not be the flashiest addition to your garden, but it offers something increasingly valuable: authenticity. In a world where landscapes are often dominated by the same few non-native plants, choosing a true regional native like this one is a small but meaningful way to reconnect your garden with the natural heritage of your area.

Is it right for every garden? Probably not. But if you’re creating a native landscape, supporting local wildlife, or simply want to try something genuinely regional, rustyseed paspalum deserves a spot on your consideration list. Just be prepared to do a little hunting to find it – the best native plants often require a bit more effort to track down!

Rustyseed Paspalum

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

Paspalum L. - crowngrass

Species

Paspalum langei (Fourn.) Nash - rustyseed paspalum

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