Homegrown asparagus is delicious… and invasive. This popular vegetable (Asparagus officinalis), native to Europe, has naturalized across the United States, from the salt marshes of the Northeast to the grasslands of the Midwest, and from Florida to California.

Damage
Asparagus is more widespread than burning bush, purple loosestrife, or multiflora rose, though there’s no evidence that it’s as aggressive as those invaders. It’s most common in roadsides, fencerows, and other disturbed areas. Birds disperse the seeds when they eat the fruit of the female plant.

Control
Help control the spread of asparagus by planting male cultivars, such as the Jersey varieties, and pulling up any female plants (the ones with berries) that do sprout.

Photo by Lisa Samoilenko