Zone:  4-9
Height:  1 m (3 ft) or more, with tall flower stalk
Spread:  30 cm (12 in); gently self-sows to make colony
Bloom:  June-July; delicate primrose yellow
Foliage:  Dark green rosette and foliage
Light:  Full to part shade
Water:  Moderate to none (once established); avoid wet crowns and roots
Soil:  Average; good drainage
Maintenance:  Cut dead stems at season's end
Garden site:  Mid to back area of perennial bed; lovely against dark background