Fishbone thistle is a rosette-forming, evergreen biennial or short-lived perennial with long, narrowly lance-shaped, lobed, spiny, white-veined, grey-green leaves and upright, branching stems bearing clusters of purple, thistle-like flowers in summer.
Winterhardy evergreen biennial Height50 cm Width50-60 cm Spacing 30-50 cm (5 pc/m2) Flowering time VII-VIII Site sunny, dry to medium moist, well drained soil. Usage solo plant, groups Propagationseeds