If you can leave them where they are for the summer they would be happiest but will transplant easily. The first year they do not get very large but will enable you to see which ones look best. As hybrids, they will probably not be true to the parent and are usually plain green but if you have the time and space and you like hostas it is always worth having a try. One day we may be able to have Grandma beside the Big Daddy. ;D