I live in zone 6, I planted Mandevilla's on side of my Mailbox facing north... pretty much all day sun plants grew with no problem (in ground) This year planted in same location, but one exception, I placed in pots so it would be easier to bring in house for winterization.. My question is: Why I did not get vines, but plenty of flowers... plant looks very healthy. puzzled.
Certified GKH Gardening Expert
This article will help with care information.
There are new varieties that are grown to be a more compact plant, for hanging baskets.
Over time your plant should grow vines.