Crabgrass (Digitaria seriata): What Every Gardener Should Know
If you’ve heard the name crabgrass, you probably weren’t thinking about adding it to your wishlist for next season’s garden! Digitaria seriata, commonly known as crabgrass, is one of those plants that tends to show up uninvited rather than being purposefully planted. Let’s dive into what this grass is all about and why understanding it matters for your native garden.
What Is Digitaria seriata?
Digitaria seriata belongs to the grass family and shares the common name crabgrass with several other species in the Digitaria genus. This can make identification tricky, as many different grasses get lumped under the crabgrass umbrella. What we do know is that it’s a grass-like plant with the typical characteristics you’d expect from this family.
You might also encounter this species listed under its synonym, Digitaria polevansii, in some botanical references.
Where Does It Come From?
The native range and geographical distribution of Digitaria seriata specifically isn’t well-documented in readily available sources. However, many plants in the Digitaria genus have origins outside of North America, which raises questions about whether this particular species belongs in our native gardens.
Should You Plant Crabgrass in Your Garden?
Here’s where things get interesting – most gardeners spend their time trying to get rid of crabgrass rather than planting it! While we don’t have specific invasive status information for Digitaria seriata, the general reputation of crabgrass species suggests caution.
Better Native Alternatives
Instead of wrestling with the uncertainties around crabgrass, why not choose native grasses that we know will benefit your local ecosystem? Consider these fantastic alternatives:
- Buffalo grass (Poä dactyloides) for drought-tolerant lawns
- Little bluestem (Schizachyrium scoparium) for ornamental appeal
- Prairie dropseed (Sporobolus heterolepis) for texture and wildlife benefits
- Blue grama (Bouteloua gracilis) for low-maintenance ground cover
Managing Crabgrass in Your Landscape
If Digitaria seriata appears in your garden uninvited (which is more likely than you planting it intentionally), focus on prevention and gentle removal:
- Maintain thick, healthy native grass stands to outcompete unwanted species
- Hand-pull small populations before they set seed
- Avoid disturbing soil unnecessarily, which creates opportunities for opportunistic grasses
- Consider pre-emergent organic methods if dealing with larger infestations
The Bottom Line
While Digitaria seriata might have its place in the broader ecosystem, it’s not typically a plant that native gardeners seek out for their landscapes. The limited available information about this specific species, combined with the general challenges associated with crabgrass, suggests that your gardening energy is better invested in well-documented native alternatives.
Focus on building a diverse, resilient native plant community with grasses and other plants that you know will support local wildlife and thrive in your specific conditions. Your future self (and your local ecosystem) will thank you for the thoughtful choices you make today!