Other Names: Digitaria sanguinalis

Type: Grassy

Appearance: Crabgrass is an annual grassy weed with spreading stems that radiate from a central point, resembling crab legs. It has wide, coarse leaves and produces seedheads at the end of stems. Crabgrass can quickly invade lawns and disrupt the growth of desirable grass varieties.

Risk: Crabgrass is a prolific seed producer and can outcompete other grasses, leading to an uneven and unsightly lawn. It thrives in disturbed areas and can take advantage of thin or bare patches in lawns.

Timing: Crabgrass germinates in the spring and thrives in warm temperatures between 80°F to 95°F. It is most active in the summer months.

Outlook: While crabgrass is an annual weed, its ability to produce numerous seeds can lead to persistent infestations. Effective control measures are essential to prevent its return in subsequent seasons.

How to Control Crabgrass

Managing this weed effectively requires a combination of preventative measures and quick treatment.


Take action before this weed appears on your lawn by following best lawn care practices, especially focusing on:

  • Maintain Thick Turf: A dense, healthy lawn provides less opportunity for crabgrass to establish.
  • Pre-emergent Herbicides: Apply pre-emergent herbicides in the spring to prevent crabgrass seeds from germinating.


If you find this weed on your lawn, it’s best to take action immediately. Working with a lawn care professional is most effective, but you can also try these DIY options:

  • Post-emergent Herbicides: Apply post-emergent herbicides to control actively growing crabgrass. Multiple applications may be necessary for effective control.
  • Good Lawn Care Practices: Regular mowing and proper watering can help control crabgrass. Mowing prevents seed production, and consistent watering supports the health of desirable grasses.

Green Image Lawn Care Knows All About Crabgrass

When dealing with crabgrass, trust Green Image Lawn Care to bring their extensive experience in weed control. Our experts understand the nuances of this invader and employ human- and environmentally-friendly methods for effective control. Contact us today for personalized solutions tailored to your lawn’s needs.

Need Help with Crabgrass?

Call Green Image Lawn Care today at 717-900-8144 and let's talk about how we can help you with Crabgrass and other lawn weeds.