When Creating a New Bed
One sure fire way to prevent weeds for an extended period of time when establishing a bed is to utilize landscape fabric. Once trees, plants and/or flowers are planted and bed edges cut, laying down landscape fabric prior to mulching to create a barrier that will prevent the germination of weeds.
1. Let sleeping weeds lie
Kill weeds at their roots but leave the soil—and dormant weed seeds—largely undisturbed.
Every square inch of your garden contains weed seeds, but only those in the top inch or two of soil get enough light to trigger germination.
After a drenching rain, stage a rewarding weeding session by equipping yourself with gloves, a sitting pad, and a trug or tarp for collecting the corpses
Tips & Tricks to follow before Autumn
When You Want to Prevent Weeds in an Existing Bed
If weeds are present in an existing bed, they must first be eradicated. Pull weeds that may have germinated within or directly next to ornamental plants