I am interested in ordering some nice cannas for my patio this year and was wondering what are the best places to purchase good rhizomes on the internet, or if you have had an experience with a nursery, which one(s) do you prefer to use? Any thanks would be appreciated, I've gotten hooked on cannas thru my Pretoria which I planted last year in my front yard. I am looking for a either dwarfs, or medium sized plants for the deck, for that "tropical" feel! Thanks! Nick