clambering

@http://dictionary.reference.com/browse/clambering+

By knowing what clambering means, it is easier to imagine and visualize the place the poem depicts with sweet scented jasmine clambering up the walls. It also adds some what of a vintage, aged, quaint feeling to the place. I agree: the vines conjure up a cottage-y, warm feeling! Also, the reader gets the feeling that he'd have to travel some distance in order to find the jasmine vines.