Question:

Hi. I have a thistle problem in the back corner of my lot. We’ve weeded, sprayed, weeded, sprayed, etc. and it still comes back. Any suggestions on what we can do to get this menace out? We are in the process of landscaping and would like to make sure it’s gone before adding the mulch to the area. Thanks!

—Roberta

Answer:

Hi Roberta,

Landscape fabric or thick layers of newspaper under the new topdress of mulch can help suppress the thistle.  Some harsher week killer may be an option too.  Round UP makes a brush and poison ivy version of their popular weed killer, it’s in a yellow capped bottle and is powerful!