Comes through the fence from a neighbouring garden.
No interactions present.
Look at the bracteoles to tell whether it's large of hedge bindweed.
The white part of the flower of bindweed is composed of five fused petals. Below that is a calyx of green sepans, and below the latter an epicalyx of two green bracteoles.
In Calystegia silvatica the bracteoles are large, and hide or almost hide the calyx.
Lat/Lng: 55.9, -3.6
OS grid ref: NT0469