Mexican Blue Sage is a fast-growing, low mounding perennial that spreads by underground runners. The small silvery-green foliage is a perfect backdrop for its electric blue flowers that are heaviest in the cooler spring and fall months. Also known as Germander Sage, this beautiful aromatic plant is one of the more petite sages that can be grown in containers. While fast growing, it lasts only a few years. Plant in well-drained soil (no fertilizer), and let the soil dry out between waterings, as it is sensitive to overwatering. Trim off spent flower stalks to encourage continued blooming. Shear in winter to stimulate lush new growth and good flowering the next season. Butterflies and hummingbirds love this sage for its nectar. Tuck this plant into rock gardens or dry borders, preferably close to living spaces.