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Perennial Plant Care Guide - Aster, Astilbe, Bearded Iris, Bee Balm, Bleeding Heart
Aster To control weeds and retain moisture, apply a thin layer of compost each spring, followed by a 2 inch layer of mulch. To encourage bushiness, pinch young shoots back. Asters need watering during the summer if rainfall is less than 1 inch per week. Tall varieties can be kept upright with a stak