Cheryl, I think it is so special that you are creating a memorial garden to honor your Daughter.
We have a small grove of Aspen and Pine trees as a memorial to my Dad at our cabin near Estes Park Co.
He passed away in 1993, the trees are getting big now, and we have added a flagstone area for seating and a small flower bed.
It's a nice place to sit and "be" with Dad, as he loved it there.