Henbit and Purple Deadnettle

Henbit and Purple Deadnettle

Other Names: Lamium amplexicaule (Henbit), Lamium purpureum (Purple Deadnettle)

Type: Broadleaf

Appearance: Henbit and Purple Deadnettle are similar-looking winter annual weeds. Henbit has square stems, opposite leaves, and purple tubular flowers. Purple Deadnettle has heart-shaped leaves with serrated edges and purple-pink flowers. Both can form dense patches in lawns during the cooler seasons.

Risk: These winter annuals can quickly establish themselves in lawns, especially in the fall and spring, competing with desirable grasses for nutrients and space.

Timing: Henbit and Purple Deadnettle are most visible in the cool seasons of fall and spring. They thrive in temperatures between 45°F to 65°F.

Outlook: While they are winter annuals and complete their life cycle within a year, their prolific seed production can lead to persistent infestations.

How to Control Henbit and Purple Deadnettle

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 Good Turf Density: A thick, healthy lawn provides less opportunity for Henbit and Purple Deadnettle to establish.
  • Pre-emergent Herbicides: Apply pre-emergent herbicides in the fall to prevent these winter annuals 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:

  • Selective Herbicides: Apply selective herbicides labeled for broadleaf weed control, targeting Henbit and Purple Deadnettle while preserving the health of the surrounding grass.
  • Healthy Mowing Practices: Regular mowing and overseeding in the fall can help suppress these winter annuals.

Green Image Lawn Care Knows All About Henbit and Purple Deadnettle

When dealing with Henbit and Purple Deadnettle, 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 management. Contact us today for personalized solutions tailored to your lawn’s needs.

Need Help with Henbit and Purple Deadnettle?

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