Gaping Grass: A Hidden Gem for Wetland Gardens
Ever heard of gaping grass? If you haven’t, you’re not alone! This native perennial grass, scientifically known as Steinchisma hians, is one of those unsung heroes of the plant world that deserves more recognition from native plant enthusiasts and wetland gardeners.





Meet Gaping Grass
Gaping grass is a true American native, belonging to the grass family and classified as a graminoid (that’s botanist-speak for grass-like plants). Like many native grasses, it has had a bit of an identity crisis over the years – you might find it listed under its old name, Panicum hians, in some older gardening references.
Where Does Gaping Grass Call Home?
This adaptable grass has quite an impressive range across the lower 48 states. You’ll find gaping grass thriving naturally in Alabama, Arkansas, Florida, Georgia, Illinois, Louisiana, Mississippi, Missouri, New Mexico, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia. That’s a pretty impressive resume for a grass that most people have never heard of!
The Wetland Connection
Here’s where gaping grass really shines – it’s a wetland specialist! Depending on where you live, this grass has different relationships with water:
- In the Atlantic and Gulf Coastal Plain, it’s practically married to wetlands (obligate wetland status)
- In the Arid West, Eastern Mountains and Piedmont, Great Plains, and Midwest regions, it usually prefers wet feet but can tolerate some drier conditions (facultative wetland status)
This flexibility makes it a valuable plant for gardeners dealing with varying moisture conditions.
Why Consider Gaping Grass for Your Garden?
While gaping grass might not win any flashy flower contests, it brings some serious practical benefits to the table:
- Native credentials: As a true native, it supports local ecosystems without any invasive tendencies
- Wetland warrior: Perfect for rain gardens, bioswales, or naturally wet areas in your landscape
- Low maintenance: Once established, native grasses typically require minimal care
- Erosion control: Grass roots are excellent at holding soil in place, especially in wet areas
The Challenge: Finding Gaping Grass
Here’s the catch – gaping grass isn’t exactly flying off the shelves at your local garden center. This lesser-known native can be tricky to source, which is unfortunate given its ecological value. You’ll likely need to contact specialized native plant nurseries or native seed suppliers in your region.
Growing Gaping Grass Successfully
Based on its natural habitat preferences, here’s what gaping grass likely needs to thrive in your garden:
- Moisture: Consistent moisture to wet conditions – think rain garden or pond edge
- Sun exposure: Probably full sun to partial shade (typical for most native grasses)
- Soil: Adaptable, but probably prefers soils that stay moist
- Climate zones: Likely hardy in USDA zones 6-10, based on its natural range
Best Uses in the Landscape
Gaping grass isn’t the star of a formal perennial border, but it could be perfect for:
- Rain gardens and bioswales
- Naturalized wetland areas
- Pond or stream margins
- Native plant restorations
- Wildlife habitat gardens
The Bottom Line
Should you plant gaping grass? If you have a wet area in your landscape and want to support native biodiversity, absolutely! Just be prepared to do some detective work to find it. This grass represents the kind of humble, hardworking native that forms the backbone of healthy ecosystems – not flashy, but incredibly valuable.
While you’re hunting for gaping grass, consider it an opportunity to discover other native wetland grasses that might be more readily available in your area. Your local native plant society or extension office can help you identify similar natives that might be easier to source while you continue your search for this particular hidden gem.