Charles Day is Wave Hill’s Ruth Rea Howell Horticultural Interpreter.
Isodon longitubus is an unusual and enigmatic perennial. Through the summer, when it looks like any slightly rangy-looking green plant, it is easily overlooked but, late in the fall, it burst out with masses of tiny, tube-shaped blue flowers.
This blue is a wonderful contrast against the fall oranges, reds and yellows of the surrounding trees in our Shade Border. Find it next to the path, just by the service gate.