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.