Tufted perennial with racemes of striking
blue "dragon head" flowers in summer. Grow in sun to part
shade in well-drained soil. 18" high by 12" wide.
Can be used in rock garden or border bed. Native to grasslands
of China, NE Asia and Siberia. Zones 4-8. Lamiaceae
Narrow linear leaves and stems with small dark blue flowers to 12”. Sun to part shade, well-drained, moderately fertile, gritty soil. Hardy to -30 degrees Lamiaceae
Upright
perennial with dark green leaves and whorls of intense dark blue
flowers in summer. 8”x 8” Sun to part shade, well drained soil.
Hardy to -20 degrees F. Lamiaceae