The genus Salvia is a large one, containing over 700 species of both annual and perennial plants. Many gardeners are familiar with the annual bedding plant salvia or the culinary salvia, but it is definitely worth exploring some of the ornamental perenial species too.
All salvias grow best in well drained, evenly moist soil with full sun.
May Night' salvia was selected the Perennial Plant of the Year for 1997. It has a long blooming period with vibrant blue flowers, grows up to 18 inches tall and has a compact growth habit. May Night' is a hybrid salvia and will not come true from seed, but can be propagated from division or cuttings. It is hardy to Zone 4. Reference' is another great bicolor with fuzzy white and blue flowers on 20 inch high plants.