Aromatic aster is a herbaceous perennial known for its daisy-like, vibrant blooms and uniquely fragrant foliage. It’s native to central and north eastern regions of the US and is a threatened species in Ohio.
Asters play an important role in our environment as a keystone species. Aromatic Aster is one of the latest blooming asters. It will flower from August-November, and sometimes even continue to bloom after frost, which makes this plant an excellent replacement for the non-native chrysanthemums!
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Growth Habits & Characteristics
•Type: Herbaceous perennial
•Height: Typically reaches 2 to 3 feet tall
•       Light/soil: Full sun with medium to medium dry soil
•Growth Form: Clump-forming with a well-established central crown; can slowly spread by rhizomes
•Foliage: Dark green leaves that release a noticeable, pleasant fragrance when touched, this helps deter herbivores and makes the plant somewhat resistant to browsing.
•Flowers: Daisy-like composite blooms with petals that may range from light purple to lavender (variations can occur among cultivars)
•Bloom Time: Late summer to fall, providing color and nectar at a time when few other plants bloom
•Hardiness: Adaptable to a range of soils and generally thrives in full sun to partial shade, making it suitable for diverse garden settings
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Hosts 
Aromatic aster plays an important role in supporting native insect populations and serves as a host plant for several Lepidoptera species including Isabella Tiger Moths (wooly bear caterpillars) and Saddleback Caterpillars (slug moth).
It serves as an important nectar source for:
•Native Bees: The abundant nectar attracts solitary bees and bumblebees that are vital for pollination.
•Butterflies: Many butterfly species visit the flowers as a key late-season nectar source.
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Companion Plants
Aromatic aster pairs beautifully with other late-season bloomers and native perennials, creating a dynamic and diverse garden ecosystem. Consider planting it alongside:
•New England Aster 
•Black-Eyed Susan
•Joe Pye Weed 
•Goldenrod (Solidago spp.)
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Ecological Importance
•Pollinator Support:
Aromatic aster provides a critical nectar source for native bees, butterflies, and other beneficial insects during late summer and fall when food can be scarce.
•Wildlife Benefits:
The seeds produced after flowering offer nourishment for birds, while the plant’s overall structure contributes to habitat diversity.
•Biodiversity Enhancement:
By including aromatic aster in your landscapes you’ll promote resilient ecosystems that support a wide range of species.
•Seasonal Transition:
As one of the later bloomers, it bridges the gap between summer and winter, ensuring continuous food sources for pollinators during the transition into cooler months.