Posted: 20/04/2013 at 13:59
It's their natural style jack
Some varieties though are upright and others not
Just choose those varieties that are more upright.
I grow quite a number of them......many,of,them in full bloom now.....
You can prune for,shape I guess.....as I do for many,of my plants....but azaleas, Rhodos etc are best not pruned and allowed to grow as they naturally would
They tend to become quite rounded in time