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Asters 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. Mounds of color begin in September, in a full range of colors. Asters support bees and butterflies right up until season's end.
Idaho has restricted all potted plant material from being shipped into Idaho
at this time.
Pinch back and divide like mums for best display. General rule of thumb is to pinch until 4th of July and not after. Pinching yields better branching and more flowers. Can be divided every 2-3 years in spring. Avoid wet overwintering conditions. Remove spent flowers to prevent reseeding.