i put in 10 yds of mulch, 2 weeks ago. she calls last night, "i need you to come back and make corrections. i saw on a t.v show that the mulch should not be around the base of the plants. i want you to make a 6 inch ring around the base of the plants, then remove the un needed mulch." there are about 80 shrubs and grasses, all close together, if i make a 6 inch ring, there won't be any mulch left. any advice?