Strong, almost woody, stems bear large sprays (to 10 inches) of violet-purple flowers.
Noteworthy Characteristics:This aster's flowers have more petals than New York aster, giving them a more frilly look. Its flowers tend to close at night and on cold days. Many cultivars exist.
Propagation:Most asters require frequent division.
Problems:Asters are sometimes plagued by fungal diseases. The most common are wilt disease, powdery mildew, and botrytis.
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