Salvia 'Cardonna' has deep violet blue flowers on blue-black stems, giving it a bicolour appearance. The flowers appear as spikes above a wrinkled rosette of deep green leaves. 'Cardonna' is an excellent cut flower and a magnet for butterflies.
Salvia ia an easy perennial to grow in most gardens. It likes full sun and is quite drought tolerant. Deadheading the spent flowers will encourage rebloom from the side shoots. When all bloom is finished cut it to the basal rosette. It will often bloom again although not as prolifically.