Crabgrass (Digitaria): The Misunderstood Grass That’s Everywhere
Let’s talk about crabgrass – that grass that somehow finds its way into every lawn and garden, invited or not. Scientifically known as Digitaria, this annual and perennial grass has quite the reputation among gardeners, and honestly, it’s complicated.
What Exactly Is Crabgrass?
Crabgrass belongs to the grass family and has that classic grass-like appearance you’d expect. It’s remarkably adaptable and can be found pretty much everywhere across North America, from Alberta down to Florida, and from coast to coast. This widespread distribution includes most U.S. states, Canadian provinces, and even extends to Hawaii, Puerto Rico, and the Virgin Islands.
The Native Status Question
Here’s where things get interesting. While crabgrass has become incredibly widespread, its native status varies by location. In Hawaii, it’s considered a non-native species that reproduces on its own in the wild. For many other regions, the native status isn’t clearly defined, which tells us this grass has been moving around for quite some time.
Should You Plant Crabgrass in Your Garden?
This might be the first time anyone’s asked you this question! Most gardeners spend their time trying to get rid of crabgrass rather than encouraging it. But let’s consider both sides:
Reasons You Might NOT Want to Plant It
- It’s not particularly ornamental or attractive
- Once established, it can spread aggressively
- Most people consider it a weed rather than a desirable garden plant
- It may compete with more desirable native plants
Potential Benefits
Believe it or not, crabgrass does have some redeeming qualities:
- It provides food for small mammals and birds (about 5-10% of their diet according to wildlife studies)
- It’s incredibly drought tolerant and adaptable
- Requires virtually no care once established
- Can help prevent soil erosion in disturbed areas
Growing Conditions (If You’re Really Determined)
If you’ve decided you want to work with crabgrass rather than against it, here’s what you need to know: it’s ridiculously easy to grow. Crabgrass thrives in full sun and adapts to various soil types. It’s particularly good at establishing itself in disturbed or compacted soils where other plants struggle.
The grass is quite drought tolerant once established, which explains why it often outcompetes lawn grasses during hot, dry summers. It spreads both by seed and by rooting at the nodes along its stems.
A Better Alternative?
If you’re looking for native grass options that provide similar benefits without the weedy reputation, consider researching native warm-season grasses specific to your region. These alternatives can provide wildlife benefits while supporting local ecosystems.
The Bottom Line
Crabgrass is one of those plants that’s probably going to show up in your garden whether you invite it or not. While it’s not the most glamorous choice for intentional planting, it does serve a purpose in the ecosystem. If you’re dealing with crabgrass in your landscape, you might as well appreciate the wildlife benefits it provides while you decide how to manage it.
Remember, successful gardening often means working with nature rather than against it – and sometimes that includes making peace with the plants that choose us.
