One Step At A Time's stones are hand crafted and cured for a minimum of 28 days. Then sealed for durability and strength. All castings are hand painted and grouted. Of course the hypertuffa items are not sealed since they need to be porous to promote health to the plants. "Hypertuffa" is made from a mixture of perlite, peat moss and portland cement. They can be left outdoors all winter. These planters are excellent for succulents, annuals as well as most perennials. I do recommend bringing the leaves in for the winter but have had a very good success rate for leaves left outside during the winter. One Step At A Time is usually either making or creating so come back often to view our "new" products!
I use real leaves for the leaf castings, and make my own molds for the stepping stones. They make excellent unique Christmas Presents!! They are also great focal points for your landscaped yard.