Unique blue-gray foliage and steel blue globe shaped flowers. Foliage looks like thistle. Foliage offers dramatic contrast in the garden.
3 - 8
July - August
Additional pests and problems that may affect this plant:
Drought tolerant once established. Very light shade during the hot part of the day may help retain good foliage quality. May reseed and spread. Needs very well-drained soil to overwinter successfully.