Morina longifolia Whorlflower
A rosette-forming perennial species, native to Himalayas, that produces glossy, thistle-like foliage (which stays evergreen in mild winters) and whorls of tubular white flowers in summer that turn from rose to crimson as each flower is fertilized. Height 90 cm. Moist, well-drained soil in sun to semi-shade. Photo 2 by kind permission of Solveig Neunteufel-Arnold.