z

Fast Free Shipping on YOUR ENTIRE ORDER*

z Login
American Express Apple Pay Discover Google Pay Mastercard PayPal Shop Pay Venmo Visa

This section doesn’t currently include any content. Add content to this section using the sidebar.

Image caption appears here

Add your deal, information or promotional text

Thistle, Bull: A Bullish Biennial Weed

Bull Thistle

Michael Shephard, USDA Forest Service, Bugwood.org

What is Bull Thistle?

Bull thistle is a noxious, biennial weed that grows in gardens, lawns, roadsides, crop sites and more. It splays from the soil with numerous leaves, each one having spines and hairs. This plant grows erect with red to purplish flowers surrounded by spiny bracts. It's a very invasive weed and requires immediate control upon detection; otherwise, it can spread and take over a landscape.

How to Get Rid of Bull Thistle

Applying an herbicide before bull thistle produces seeds is the best way to manage the problem. It reproduces by seed, so early detection and herbicidal application will help to stem its growth. For the best control, apply a postemergent herbicide with triclopyr or clopyralid to the thistle when it's in the seedling or rosette stage.

Search

z