A robust clump-forming perennial with rounded, dark green basal leaves and upright, branched stems bear deeply-lobed, spiny leaves and small, thistle-like silvery-green flowerheads maturing to pale steel blue, above narrow, spiny pale blue-green bracts 2.5cm long, in mid to late summer
Position
Soil Types
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres