Perennial species from Siberia. Spreads via rhizomes to make a neat mat of upright stalks with oblong, toothed leaves and smaller, ovate...Read More, scalloped stem leaves. Bears short racemes of hooded deep blue flowers (1½ inches long)with darker blue spots on lower lip.
Hardy little plant which attracks bees.
Needs well drained, fertile soil with some shade during the hottest part of the day.
Perennial species from Siberia. Spreads via rhizomes to make a neat mat of upright stalks with oblong, toothed leaves and smaller, ovate...Read More