For a bedroom full of curves, this botanical study brings the check. Three cornflowers stand tall and straight, and that upright rhythm quietly tidies a room of round mirrors, curved headboards and soft cushions. On a pale wall it reads as fresh rather than fussy, and the blue picks up any grey or denim already in the room without shouting. Hang it above a chest of drawers, in a narrow hallway, or between two windows where daylight can do the work. Pair it with pale wood, linen, stoneware and simple cotton. Keep the wall around it uncluttered: heavy ornate mirrors, busy patterned wallpaper or a strong warm-yellow wall will fight the cool blue and flatten it. As a canvas it sits flat to the wall with a soft, painterly finish.