Salvia 'Indigo Spires'
Rapidly achieving popularity, this hybrid of S. farinacea x S. longispicata is a great summer border plant. Up to 5 ft. tall, and rather straggly, this is a superb plant for a herbaceous border. Support is required as the long flower-stems are inclined to flop under the weight of the flowers. Flowers all summer long, and is at its best in early Autumn. Borderline hardy in the UK, it is propagated from easily-rooted cuttings. It is a sterile hybrid which does not set seed.