Groundcover Milkvetch: A Southwestern Native Worth Knowing
Meet groundcover milkvetch (Astragalus humistratus var. hosackiae), a native perennial that calls the American Southwest home. While this particular variety might not be a household name in native gardening circles, it represents the incredible diversity of plants that have adapted to thrive in our arid landscapes.
Where You’ll Find This Southwestern Gem
Groundcover milkvetch is naturally found in Arizona and New Mexico, where it has evolved alongside other desert and semi-arid plant communities. As a native species to the lower 48 states, it’s perfectly adapted to the unique challenges of southwestern growing conditions.
What We Know (And What We Don’t)
Here’s where things get interesting – and a bit mysterious. Astragalus humistratus var. hosackiae is one of those native plants that hasn’t received much attention in horticultural circles. While we know it’s a perennial member of the legume family (like many milkvetches), specific information about its growth habits, appearance, and cultivation requirements remains elusive.
This isn’t uncommon with specialized plant varieties, especially those from remote or specialized habitats. Many of our native plants are still waiting for their moment in the gardening spotlight!
Should You Consider Growing It?
The honest answer? It depends on your gardening goals and patience level. Here’s what to consider:
- For native plant collectors: If you’re passionate about growing truly local species and have access to responsibly sourced seeds or plants, this could be an interesting addition to a specialized native collection
- For typical home gardeners: You might want to start with better-documented southwestern natives while researchers learn more about this variety
- For habitat restoration: If you’re working in areas where this plant naturally occurs, it could be valuable for authentic ecosystem restoration
Alternative Native Options
If you’re drawn to the idea of growing southwestern milkvetches but want something with more established growing information, consider these related native alternatives:
- Other Astragalus species native to your area
- Well-documented leguminous natives like desert broom or fairy duster
- Regional native wildflower mixes that may include local milkvetch species
The Bottom Line
Groundcover milkvetch represents the fascinating diversity of our native flora, even if we don’t yet know all its secrets. While we wait for more research and cultivation experience to emerge, there’s something appealing about these botanical mysteries hiding in plain sight across our southwestern landscapes.
If you do decide to try growing this variety, approach it as an experiment rather than a sure thing. Connect with local native plant societies, botanical gardens, or extension offices – they might have insights or even seeds from local populations. And remember, every gardener who tries something new contributes to our collective knowledge of how to grow and appreciate our native plants.
Sometimes the most rewarding plants are the ones that keep a few secrets, don’t you think?
