Perovskia, Blue Steel

Aromatic, silvery foliage carries clouds of small, blue flowers on strong, silver stems that do not break or split easily. Plants have a sturdy, controlled habit and spread up to 28". Pinch for optimal branching. A first year flowering perennial. Heat and drought tolerant. Requires no vernalization. Very hardy.
Height: 30-36".
Spread: 28".
Zones: 4-9.