Australian Sprangletop: A Non-Native Grass Worth Knowing About
If you’ve stumbled across the name Australian sprangletop (Leptochloa decipiens) in your gardening research, you might be wondering what exactly this grass is and whether it belongs in your landscape. This perennial grass has quietly established itself in parts of the southeastern United States, and while it’s not a native species, it’s worth understanding what it brings to the table—and what native alternatives might serve you better.
What is Australian Sprangletop?
Australian sprangletop is a perennial grass that, as its name suggests, originally hails from Australia. This grass-like plant produces delicate, open seed heads that give it a somewhat wispy, elegant appearance. Like other members of the grass family, it’s wind-pollinated and has adapted well to life outside its native range.
Where You’ll Find It Growing
Currently, Australian sprangletop has established populations in Mississippi and South Carolina. As a non-native species that reproduces on its own in the wild, it has shown it can adapt to the growing conditions in these southeastern states.
Should You Plant Australian Sprangletop?
Here’s where things get interesting. While Australian sprangletop isn’t necessarily harmful, it’s also not providing the ecological benefits that native grasses offer. Since we don’t have complete information about its invasive potential or specific impacts on local ecosystems, a cautious approach makes sense.
If you’re drawn to the aesthetic qualities of this grass—its vertical texture and delicate seed heads—consider these fantastic native alternatives instead:
- Little bluestem (Schizachyrium scoparium)
- Indiangrass (Sorghastrum nutans)
- Eastern gamagrass (Tripsacum dactyloides)
- Switchgrass (Panicum virgatum)
Growing Conditions and Care
If Australian sprangletop is already established in your area, it’s helpful to know what conditions it prefers. This adaptable grass seems to thrive in the warm, humid conditions of the Southeast, likely preferring full sun to partial shade situations. As a perennial, it returns year after year once established.
However, rather than actively cultivating this non-native species, we’d encourage you to explore the many beautiful native grasses that can provide similar aesthetic appeal while supporting local wildlife and ecosystems.
The Bottom Line
Australian sprangletop represents one of many non-native plants that have found their way into American landscapes. While it may not be aggressively invasive, choosing native grasses for your garden will always be the more ecologically responsible choice. Native grasses support local birds, beneficial insects, and contribute to the health of your local ecosystem in ways that non-native species simply cannot match.
When planning your landscape, remember that every plant choice is an opportunity to support native wildlife and preserve the natural heritage of your region. Your local native plant society or extension office can help you identify the best native grass species for your specific location and growing conditions.
