Genus containing some 250 species of annuals, biennials, perennials, and sub-shrubs. Well
known for their large daisy-like blooms and alternate leaves which are simple, entire, or
lance-shaped. Their versatile habits spread them throughout mountainous areas to moist
woodland sites, in North America and parts of South Africa.
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Aster Growing Tips
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Aster plants perform best in full sun, but will also provide a nice display in partial shade. Plant
in a well-drained soil that has been incorporated with organic matter. Removal of spent
flowering stalks can be accomplished with a set of pruners or scissors. Make the cut just
above the basal rosette of leaves. New England asters like 'September Ruby' do not have a
prominent rosette of leaves directly after blooming. For these species and cultivars remove the
dead flowering heads as desired. Leaving spent flowers on aster plants will not significantly
reduce the following years display, thus the blooms can remain. Side dress aster plants
annually in the fall with a light dressing of compost or like organic fertilizer. Skip the side
dressing step if plants are mulched; as the mulch provides enough nutrients when decomposed.
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