The plant is a hardy perennial mint with reddish stems that can grow up to 3 feet (1 metre) tall. It doesn’t grow true to seed; it is best propagated by runners.
It has crinkled, light greyish-green leaves with serrated edges that are hairy on top and fuzzy underneath. The leaves will be 1 to 2 inches (2.5 to 5 cm) long.
It blossoms with pale purple flowers.
It is best if clipped regularly to keep shorter to promote young leaf growth.
It needs the tricky combination of both sun and moist soil. It is not that invasive, because it tends to keep close to its water source, unless there is moist soil everywhere.
Strip leaves off, discard stems.
Developed by the English breeder E.A. Bowles.