Outdoor Planters Bespoke grey window box on the windowsill of a white brick house with large sash windows. cottage garden style planting in a black window box Combination of artificial box balls and real violas in a black window box. close up of lavender petals A set of three window boxes for a London townhouse, ready planted with purple and green flowers. A custom made window box painted in RAL 7005 to match Farrow and Ball colour downpipe, on the window sill of period property with a very grand tall arched window. A white window box with bright green and dark purple flowers, seen in bright sunlight, and viewed from indoors through a sash window. A window box in soft black planted with herbs violas and lavender. The flowers will fill out in a couple of weeks for an abundant look. Side view of a bespoke grey window box planted with lavender and white flowers, on the windowsill of a period property.