Fall is the single best time to control perennial weeds and hre is why: Weeds are just like the desirable plants in your landscape in that during the Fall they are taking all the sunlight, water and nutrients that they gather and converting it into energy that they then store to help them compete and survive the winter season. So take advantage of this natural system and apply any weed killing compound like glyphosate (Roundup) and the plant will do the heavy lifting and transport it directly to the growing point of the plant. This provides the most effective weed control. If you want more tips – Call F.A. Hobson Landscaping and let us help you to take care of your property. 410-739-6800.