One of the best dark blues Invaluable in the hardy border, adding superb color in Autumn. Med. To Tall 24-30". - Plant 20" apart. Zone 3-8 . Very durable and long lived. Even heavy wet soils will suit Asters. Watch for powdery mildew beginning in mid summer, but good air circulation will go a long way towards preventing disease. Pinch back and divide like mums for best display. These are invaluable in the hardy border, adding superb color in the autumn. Very durable and long lived. Even heavy, wet soils will suit them. Richer soils will generally yield taller plants. Powdery mildew can be a problem. Mounds of color beginning in September, in a full range of colors. Asters are great at adding blue shades to fall season’s color.
