Swertia perennis (Blue Marsh Gentian)
Swertia perennis (Blue Marsh Gentian)
40 (60)cm, Blue Marsh Gentian or Blue Marsh Felwort is a rare perennial endemic of humus rich soils in marshes and moist meadows in the Alps to E Europe. Makes a basal rosette of quite large leaves and an upright inflorescence with dark blue to lilac blue, star like flowers. For any humus rich, leafy soil in a partially shaded spot. Keep soil always slightly moist in summer. VI-VIII.More Details »