Salvia patens is part of the Sage family or Lamiaceae family of plants. It is a herbaceous perennial, native to Mexico. They also call it the Gentian Sage, Blue-flowered Sage, Spreading Blue Sage, or Spreading Sage. “Patens” means spreading.
It is tuberous and grows to 60cm or 24in tall. The foliage is green ovate to triangular in shape. The leaves are aromatic. The flower is blue with a green calyx. It is two-lipped and it forms a large open panicle. Salvia patens are sensitive to frost and therefore they grow it as annuals.
How to grow Salvia patens:
Grow Salvia patens in the sun. It can tolerate light shade. Plant it in humus-rich, fertile, moist, but well-drained soil. Propagate by seed or basal cuttings or softwood cuttings in spring. Deadhead the flower spikes to prolong the flowering season. It is generally disease-free and pest-free.
Other synonyms for Salvia patens include:
Salvia horminum ‘Oxford Blue’
Salvia patens ‘Oxford Blue’
Salvia patens ‘Royal Blue’