Lilacs
 

I am really new to gardening so bare with me. I bought 2 lilacs from a
Garden show. They are the deep purple kind. Currently they are just
beginning to bud. I haven't planeted them yet which brings me to my
question. How tall do Lilacs get? Once I know how tall they will get than I
can figure out where to plant them.
Also can anyone recommend a good website on the planting and caring for
lilacs?
Thanks