A large species sea holly from S. America .  Clump-forming, evergreen perennial with long, narrow mid-greenleaves with spiny margins.  In late summer produces very tall stemswith spherical umbels of whitish green flowers. Fully hardy, full sun and a well drained soil.

Height 250cm Spread 75cm.

5 litre pot. 

Clump forming, tap-rooted perennials.  Very large grey-blue flowers with extra large cones, whole plant silvery-grey when mature.  Fully Hardy. Full Sun. Dry well drained poor to moderately fertile soil. Irish Cultivar from Slieve Donard Nursery, Newcastle, Co. Down. 

Height 100cm Spread 60cm.

3.5 litre pot.

Clump forming, tap-rooted perennials.  Very large 10cm prickly steely blue flowers with extra large cones, whole plant silvery blue when mature. Flower heads good for cutting. Fully Hardy. Full Sun. Dry well drained poor to moderately fertile soil.  

Height 75cm Spread 50cm.

3.5 litre pot.