North America Native Plant

Ricegrass

Botanical name: Oryzopsis

USDA symbol: ORYZO

Life cycle: perennial

Habit: grass

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

Ricegrass: A Hardy Native Grass That Wildlife Actually Use If you’re looking for a native grass that pulls its weight in the wildlife department, meet ricegrass (Oryzopsis). This unassuming perennial might not be the showiest plant in your garden, but it’s definitely one of the most useful for local critters. ...

Ricegrass: A Hardy Native Grass That Wildlife Actually Use

If you’re looking for a native grass that pulls its weight in the wildlife department, meet ricegrass (Oryzopsis). This unassuming perennial might not be the showiest plant in your garden, but it’s definitely one of the most useful for local critters. While many native plants get all the glory for feeding butterflies and hummingbirds, ricegrass quietly does the important work of feeding the bigger players in your backyard ecosystem.

What Makes Ricegrass Special

Ricegrass belongs to that wonderful category of grass-like plants that includes not just true grasses, but also sedges, rushes, and their relatives. As a perennial, it’s in it for the long haul – plant it once, and it’ll keep coming back year after year. Think of it as the reliable friend of the native plant world: maybe not the life of the party, but always there when you need it.

Where Ricegrass Calls Home

This grass has an impressive native range that spans both Canada and the lower 48 states. You’ll find it naturally occurring from coast to coast, thriving in places like Alberta, British Columbia, Manitoba, and stretching all the way down to states like Colorado, Connecticut, and everywhere in between. From the Maritime provinces to the Prairie provinces, and from Maine to Montana, ricegrass has made itself at home across a huge swath of North America.

The Wildlife Connection

Here’s where ricegrass really shines. While it might look like just another grass, it’s actually providing some serious sustenance for wildlife:

  • Large animals get 5-10% of their diet from ricegrass – that’s a pretty significant contribution to feeding deer, elk, and other big herbivores
  • Small mammals rely on it for 2-5% of their diet, which might not sound like much, but every bit counts when you’re a tiny creature
  • Birds also use it for 2-5% of their diet, particularly ground-feeding species that appreciate those nutritious seeds

While ricegrass doesn’t provide much cover for wildlife, its real value is as a food source. Those seeds are like tiny power packs of nutrition for everything from mice to moose.

Growing Ricegrass in Your Garden

The honest truth? We don’t have all the growing details nailed down for ricegrass, which is pretty typical for many of our wonderful native grasses that haven’t gotten the horticultural attention they deserve. But here’s what we can tell you:

As a native grass, ricegrass is likely to be fairly low-maintenance once established. Most native grasses prefer well-draining soil and can handle a range of light conditions from full sun to partial shade. They’re typically drought-tolerant once their root systems develop, which can take a year or two.

Should You Plant Ricegrass?

If you’re creating a wildlife-friendly native garden, ricegrass deserves consideration. It’s particularly valuable if you:

  • Want to support a variety of wildlife, from songbirds to large mammals
  • Are creating a prairie or meadow-style planting
  • Need a reliable, low-maintenance perennial grass
  • Want to use truly native plants in your region

The main drawback is that we don’t have detailed cultivation information readily available, which means you might need to do some experimenting. But isn’t that part of the fun of native gardening?

The Bottom Line

Ricegrass might not win any beauty contests, but it’s doing important work in the ecosystem. If you can find seeds or plants from a reputable native plant source, it’s worth trying in a naturalistic planting. Your local wildlife will thank you, even if your neighbors don’t immediately understand why you’re so excited about what looks like just grass. Trust us – sometimes the most valuable plants are the ones that don’t need to show off.

Wildlife Status

Want to attract wildlife or keep hungry critters away from your garden? Understanding the relationship between plants and wildlife is key. While plant tags may indicate deer and rabbit resistance, they don't tell the full story. Every gardener has experienced the disappointment of purchasing "deer-resistant" plants only to find them nibbled to the ground!

The extent to which plants are resistant to animal browsing is a matter of degree. Likewise, the extent to which a plant attracts wanted visitors also varies. Whether you want a garden full or free of wildlife, learning about interactions between a plant and wild animals can help you make smarter choices for the garden you desire.

As shown below Shrubby Indian Mallow isn't a large food source for animals or birds. You can confidently add this plant to your garden and rest assured knowing it's unlikely to be devoured by four-legged visitors.

Small animals

2-5% of diet

Sparsely used as cover

Large animals

5-10% of diet

Infrequently used as cover

Terrestrial birds

2-5% of diet

Sparsely used as cover

Water birds

not a food source

not a source of cover

Sources:

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications. New York.

Ricegrass

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

Oryzopsis Michx. - ricegrass

Species

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