Welcome on the forum
As far as vines or climbers are concerned you can have one of following
Rangoon strongly recommended it’s a fast growing vine with beautiful fragrant
flowers and it can also add a very beautiful feature in your garden
Wisteria is very beautiful but slow growing and take a long time to start flowering
Bougainville is also a nice option but need to check its types and their attributes
Jasminum Grandiflorum is again a fragrant one
Beaumontia grandiflora very very beautiful but not fragrant
clerodendrum splendens beautiful vine with thick structure good for patio garden
They are good for Islamabad climate but I’m not sure about some other vines because I haven’t
tried them in Islamabad and have less knowledge about trees but you can check some posts on
this forum
search.php and I hope some tree specialists will help
you InshAllah
