Hello!
I have several iris plants on my property, and my wife & I have been landscaping around these with river rock. It's looking pretty good & coming along nicely(the landscaping project that is) However, I'd like to eliminate the crabgrass thats in the irises. Would Preen work? I've never used Preen. I'm just at a loss what my options would or could be on this. Any help/suggestions?