Thyme-leaved speedwell (Veronica serpyllifolia)

Thyme-leaved speedwell (Veronica serpyllifolia) is a perennial weed that can grow in diverse environments including forests, hillsides, and grassy areas. To prevent it from taking over your yard, you can take the following steps:

1. **Frequent Mowing**: Consistently mow your lawn to discourage the weed's growth.
2. **Watering and Fertilizing**: Properly water and fertilize your lawn to encourage dense grass, which will outcompete the weed.
3. **Healthy Lawn Practices**: Aerate and overseed your lawn to maintain its health and thickness.
4. **Manual Weeding**: Remove the weed manually, ensuring to get the entire root.
5. **Use of Herbicides**: If needed, apply selective herbicides designed to target broadleaf weeds.

These practices will help establish a robust lawn that naturally resists the invasion of thyme-leaved speedwell.