Salvia Also called scarlet sage (Salvia sp.) One- to 2-inch, tubular flowers clustered on spikes. Plants 14 to 20 inches tall; dwarf varieties 12 inches. Deep scarlet, pink, blue, white. Soil and Light Full sun or partial shade. Rich, well-drained soil. Planting Start 6 to 10 weeks early indoors or buy transplants. Comments Use plants in beds, borders, and patio tubs. Bright colors can be almost overpowering.