Tall spiky plant in garden

Asked July 22, 2018, 12:51 PM EDT

A number of these popped up in my garden this year. I’ve let them grow to see what they are, but am still stumped. The tallest is about 5.5 feet. The last photo shows a younger one, about 3 ft tall. Thanks! Marjean

Hennepin County Minnesota

2 Responses

The plants shown in the photos are Canada fleabane (Conyza canadensis)
also known as horse weed or mare's tail.

Learn more here:


Thank you!