Convolvulus cneorum - Shrubby Bindweed This Silvery Bindweed is a small evergreen shrub perfect for cottage gardens, low maintenance gardens and patio areas. It spreads to around 100cm and develops to a similar height of 100cm, due to its compact spread Convolvulus cneorum is great for placing in those hard-to-get-to corners. It produces small funnel-shaped flowers in a pearly white shade, with a central circular colour of buttercup yellow. Silverbush plants originate from the Mediterranean, therefore planting them in a position of full sun is just what it needs. Silvery Bindweed has silvery leaves which create a year-round interest in the garden. It blooms from May until August, revealing attractive flowers that develop a slight pink cast to them whilst in bud.