A great plant to add contrasting foliage interest to the front or middle of a sunny border, Eryngium giganteum Big Blue has teasel-like cones of steely-blue flowers – like thimbles – surrounded by a ruff of silvery blue spiny bracts. Held on stiff, branched stems, the deeply divided leaves are silver-green and spiky. An interesting accompaniment to grasses or other architectural plants.
Keep the flower heads on all winter, as they look striking.
This Alpine Sea Holly is a rosette-forming biennial, but self-seeds freely. It's a popular choice for flower arrangements, both fresh and dried.
Pot Size: 2/3L
Common Name: Alpine Sea Holly
Hardiness: Fully hardy
Height and Spread: 100cm x 50cm
Preferred Soil Type: Any dry, well-drained, poor to moderately fertile soil
Aspect: Full sun
Position: Sounth, west or east facing
Care: Protect from winter wet