I had a couple of hrs notice to do this with things I had in my garden and happen to have one sympathy cross left that came in a two pack for donated arrangement I had carnation then ran and bought some hydrangea for a donation arrangement. Although ,it wasn't until after I got back after delivery to the funeral home did I look up the floral meaning of hydrangea. I wasn't delighted and quite embarrassed to learn this.
Also I kind of wished I hadn't agreed to do it. I suppose I've got a lot of research to do to make sympathy display and bouquet even if it is with my own flowers. Just didn't look very good either.