Isn't that the truth? You roll those genetic dice and you don't know what you're going to get. I'm 5'2" and DH is 6'4". Our DDs are between 5'4" and 5'6". However, DGD2's father is 6'7" and she is showing every indication that she's going to be tall. (You know how you can look at a puppy's feet and pretty much figure it'll be a big dog by the size of its paws? Well, she's 27 months old and wearing a children's size 8 shoe (don't know how that translates internationally, sorry, but as a reference a friend's 4 yo wears an 8 too).
Not sure that always works out though.....
....Becky had really long feet as a child and was always tall for her age. Everyone kept telling us she was destined to be very tall......hmmmmm.......at 22 she's just 5ft 1inch..........don't think she'll suddenly shoopt up now!
You might be interested in Lane Bryant (check out their website, too). There is an LB outlet at PRIME OUTLETS INTERNATL, 4953 INTERNATIONAL DR 1B12, ORLANDO, FL 32819. They used to be very matronly, but in the past few years they are definitely courting the younger crowd.