Not quite a blue-flowered form, but the spectacular large, mauve-purple, thistle-like flowers are held on stiff stems, above the dark green leaves.
June-September flowering. Best in a sunny position in most garden soils. 120cm x 60cm (4' x 2').
Not quite a blue-flowered form, but the spectacular large, mauve-purple, thistle-like flowers are held on stiff stems, above the dark green leaves.
June-September flowering. Best in a sunny position in most garden soils. 120cm x 60cm (4' x 2').