Ragged Robin White Robin A white form of the native ragged robin, Lychnis flos-cuculi White Robin is a modest but fashionable plant of great charm and prettiness. An upright, spreading, herbaceous perennial, it has blue-green, lance-shaped leaves at the base; leaves further up the stem are rounder. From late May to early August, loose heads of pure white, filigree flowers appear above the leaves, best seen where these plants are loosely massed. Ragged robin White Robin is very attractive to butterflies and long-tongued bees. Site: Tolerates exposureSoil: Any damp, even boggy, soilPosition: Full sun or dappled shadeFlowering period: Late spring to summerHardiness: Fully hardyHeight: 2’ (60cm) Spread: 18” (45cm)