A large aster for wetlands and rain gardens, Symphyotrichum puniceum (Swamp Aster) easily reaches five feet high in the right conditions. Found in prairie and savanna situations, it thrives in wet to wet-mesic soils. Large pale blue daisy flowers with delicate petals are set in panicles beginning in late summer. Asters are key pollinator plants that provide a welcome source of late-season nectar. Numerous moths use them as larval hosts.
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