Today, I shared some of my perennials with a lady. Black-eye susans, coneflowers, and white foxglove that I had wintersowed in Jan. the BES and Coneflowers I'd had at least 2 or 3 yrs. Both the BES and Coneflower were big clumps. The BES was a large enough clump that she could have made many plants out of it. It was still blooming but had many spent pods on it. Should she go ahead and cut that down low as she plants i of should she just cut it back about 4-6 inches and see if it will rebloom this Fall? Two of the coneflowers I had cut all the way back about a month ago. Another coneflower had finished blooming and had faded blooms still on it. I suggested she cut that one back like I had when she planted it. It should come back blooming in the Spring. The white foxglove has not bloomed. I imagine it blooms the second year. Told her to plant it right away and water all of them.
Also gave her some creeping yellow sedum and told her how to divide that into several pieces and how to break off pieces and start new plants.
Hope I gave her the right instructions. Can you add anything except mulching after she planted and watered it?