This plant is known as Calystegia silvatica, or more commonly, Bindweed. These are commonly classed as a perennial weed and will often be seen winding around other plants and taking over hedgerows Although a troublesome weed for many gardeners, bindweed flowers do provide pollen for bees and the leaves are a source of food for the larvae of convolvulus hawk moths.
Location: Chiswick House and Gardens
Camera: iPhone 13 Pro Max
Age Group: over_16
Professional Photographer? no