|Salvia guaranitica subsp. var.||Anise-scented sage|
It is a perennial subshrub growing 1-3 m tall. The leaves are ovate, 4-13 cm long, mint green, and anise-scented when crushed. The inflorescences are up to 25 cm long, with each flower 3-5 cm long in varying shades of blue, with a dark basal calyx 10-12 mm long. Flowering begins in mid summer and continues till mid autumn.
Salvia guaranitica is a popular ornamental plant in mild areas where the temperature does not fall below −12 °C. It grows in either full or three quarter sunlight, in well drained soil.
Numerous cultivars have been selected, including 'Argentine Skies' (pale blue flowers), 'Black and Blue' (very dark violet blue calyx), 'Blue Enigma', 'Blue Ensign' (large blue flowers), and 'Purple Splendor'.
Pests and diseases
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963