This year I am experimenting with perennial succulents in my urns that are located in full sun. I had two coco liners filled with soil left from last summer’s hanging baskets. I turned them upside down over my cast iron urns, tucking the fiber into the edge of the urns to make them fit and to prevent soil and water from leaking out. I then cut slits in the fiber and tucked slips of succulents (sedum and stonecrop) into the slits. For the top, I used a large sermpervivum rosette (the hen part of the hen and chicks succulent plant). I am hoping the succulent slips will cascade over the sides of the urns as they grow. I will rotate the urns occasionally as the sedums grow towards the sun, so they will cascade evenly around the perimeter of the urns.
Perennial succulents are an excellent choice for a hot, dry location in your garden. There are many varieties to choose from; sedums and stonecrop are two of my favourites. Choose a variation in color for a spectacular display. Once established succulents require very little water, and in fact too much water will cause them to rot. These urns of mine sit in front of my garage with a hot, dry, full sun, southern exposure. Over the years I have not had much luck with any other plants growing there. They all start off well, but quickly lose their appeal as they get leggy and dry out. Hopefully the succulents will do the trick to keep my urns looking great all summer.
I also use succulents such as sedum and stonecrop as groundcovers in hot, dry, full sun locations in my garden. They make beautiful edging plants in the perennial garden.