North America Non-native Plant

Wallaby Grass

Botanical name: Amphibromus

USDA symbol: AMPHI9

Life cycle: perennial

Habit: grass

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Wallaby Grass: What You Need to Know About This Australian Import If you’ve stumbled across the term wallaby grass in your gardening research, you might be wondering what exactly this plant is and whether it belongs in your landscape. Wallaby grass, scientifically known as Amphibromus, is a genus of perennial ...

Wallaby Grass: What You Need to Know About This Australian Import

If you’ve stumbled across the term wallaby grass in your gardening research, you might be wondering what exactly this plant is and whether it belongs in your landscape. Wallaby grass, scientifically known as Amphibromus, is a genus of perennial grasses that has made its way from its native Australia to parts of the United States. Let’s dig into what makes this grass tick and whether it’s right for your garden.

The Basics: What is Wallaby Grass?

Wallaby grass is a perennial graminoid – that’s just a fancy way of saying it’s a grass or grass-like plant. Like other members of the grass family, it has that classic linear leaf structure and grows in clumps or tufts. The name wallaby grass gives away its Australian origins, where these grasses naturally grow alongside those iconic hopping marsupials.

Where You’ll Find It in the US

In the United States, wallaby grass has established itself in California and Louisiana. As a non-native species, it arrived here through human introduction and has managed to reproduce and persist in the wild without ongoing human intervention.

The Garden Reality Check

Here’s where things get a bit complicated for gardeners. While wallaby grass isn’t currently flagged as invasive or noxious in available databases, its status as a non-native species that can spread naturally should give us pause. When we choose plants for our gardens, we’re making decisions that affect not just our own little patch of earth, but potentially the broader ecosystem.

Why Consider Native Alternatives Instead?

Before you set your heart on wallaby grass, consider these compelling reasons to go native:

  • Native grasses have co-evolved with local wildlife and provide better habitat and food sources
  • They’re naturally adapted to your local climate and soil conditions
  • Native plants typically require less water and maintenance once established
  • You’ll be supporting biodiversity and helping preserve your region’s natural heritage

Native Grass Alternatives to Consider

Instead of wallaby grass, why not explore some beautiful native options? In California, consider purple needlegrass (the state grass!) or California fescue. Louisiana gardeners might love inland sea oats or switchgrass. These native beauties will give you that graceful, flowing grass aesthetic while supporting local ecosystems.

If You Already Have Wallaby Grass

If wallaby grass is already growing on your property, keep an eye on it to ensure it’s not spreading beyond where you want it. Regular maintenance and mindful gardening practices can help prevent any unintended spread to natural areas.

The Bottom Line

While wallaby grass might have its charms as a perennial grass, the smart money is on choosing native alternatives that will thrive in your specific location while supporting local wildlife. Your garden can be both beautiful and ecologically responsible – and that’s a win-win worth striving for!

Remember, every plant choice we make is a vote for the kind of environment we want to create. By choosing native plants, you’re casting your vote for biodiversity, sustainability, and a healthier ecosystem right in your own backyard.

Wallaby Grass

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

Amphibromus Nees - wallaby grass

Species

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