Symphyotrichum cordifolium 'Wood Aster'Symphyotrichum cordifolium, or blue wood aster, is a low maintenance, native herbaceous perennial with heart shaped, toothed basal leaves and upright stems reaching 1 4 feet tall. It produces abundant, small, blue to lavender flowers with yellow centers in dense clusters from late summer into fall, which attract pollinators like bees and butterflies. The plant thrives in partial to full shade in moist to dry, well drained soils and is deer resistant