The roots contain helenin and tissue soothing mucilage which provide a very effective expectorant action when made into teas, cough syrups and throat lozenges. Roots are a traditional source of blue dye for Scottish tartans when mixed with ashes and whortleberries.
Source of plant
A seed strain that produces plants of extremely large stature with exceptionally large flowers.
USDA Hardiness Zone
growth habit, medicinal/pharmaceutical, other ethnobotanical uses