Reaching only 12-15" in height, it forms tight, broad-spreading mounds of clean foliage that becomes covered from head to toe with red-violet to deep crimon-red, daisy-like, flowers in fall. Asters generally do well in just about any soil, as long ast they're not to dry -- even heavy clay is OK! Plants generally need decent air circulation to prevent powdery mildew (a whitish coating that can cover the leaves, giving the plants an unkempt, less attractive appearance). You can also cut back the top six inches of growth in mid-June to force more blooms and bushiness in fall.