Hi Susan, A.M. Leonard is where I have been buying a lot of supplies for grafting trees. They have a good selection and carry just about anything you could ever want. http://www.amleo.com/ You can also try Novosel Enterprises. I have purchased quite a few supplies through them. They carry a nice selection of pots and will sell to the home gardener as well. http://novoselenterprises.com/products/basket.asp/… Good Luck, Glen Pace MI USDA Zone 5 Where we are having a real warming trend. It is 32 degrees F at 0300 in the morning.