So sorry for the loss of your grandmother. What an incredible and heartearming living memorial you have tasked yourself with. If the local nursery does not give you plants for free, I'd hope they could at least give you a deal on plants that are going out of bloom. I'd love to chip in $20, but I guess you'd have to start a gofundme page or something like that as I can't exactly drop it off on my way home from work