Globe Thistle
Compact, clump-forming perennial with stiff, spiny, dark green leaves, cobwebby above. From mid-summer bears spherical flowerheads, to 4cm, metallic-blue before the florets open, maturing to a dark blue. Repeat flowering. Fully hardy. Full sun. Best in a poor, well-drained soil.
Height 90cm Spread 45cm.
2 litre pot.
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