We have Kentucky blue grass, it is invading my flower beds, how can I kill it without hurting the aspen trees?

Going by the fact that you wish to "kill" this bluegrass, I will have to suggest spraying the edges with a little "roundup". It will not harm any other tree, bush, or shrub, as long as you don't spray any of the foliage on these plants. Roundup will not "move" through the soil to harm non-targeted plants by root absorption and is very safe to use. I'm sure you have heard of this product. If you do use Roundup, be careful along the edges and do your application on a non-windy day. You don't want to have non-targeted vegetation hit with "drift". Read and follow the directions on the label. If this border area is small enough, Roundup comes in a "ready-to-use" bottle. Hope this answers your question...





...$Billy Ray$

We have Kentucky blue grass, it is invading my flower beds, how can I kill it without hurting the aspen trees?
dig it by hand
Reply:I also have KY blue grass. I pulled it by hand around my trees and then put rings of decorative rocks that we have collected around the borders. I also lined the edges of my flower beds with the black plastic edging and lined them with the rocks It is now very easy to pull the new grass that creeps in. Hope this helps.
Reply:Dig an edge about 4 or 5 inches deep all around the flower bed. It doesn't have to be wide, just about 3 inches. Backfill with mulch and level it down almost to ground level so the mower wheel can run on the edge of the mulch.





The grass roots will not be able to run under the the edge. Usually this needs redone every year.