Hi Clyde: Thanks for the advice. I was nervous about "mixing" the 13-13-13- in the potting mixture. Sure don't need to damage the Hostas. I also have Osmacote but it is only available in small packages here in the Quad Cities (that I've been able to find) so it is on the pricey side to feed all the Hostas I have growing. What is this "Green Sand" you speak of? Never heard of it before. Thanks - Forrest in Western Davenport, IA