30 (50)cm, Pacific Onion or Swamp Onion makes showy, long stalked, bright rose flowers umbels above rather broad leaves. Native of humus rich, slightly moist, mountaineous sites in the Pacific region of western USA. For any rich, well drained soil in a sunny spot. Seeds from a certified wild collection in Plumas County, Bear Creek Road, California at some 1.550m. VI-VII.