Heart Leaved Aster
Symphyotrichum cordifolium
Notes:

From what I've read, Asters are one of the best caterpillar host plants. The adult pollinators also like them.

Two - four foot flower with clusters of lavender blossoms. Very pretty in fall after summer flowers are done. Excellent for bees.

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Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect.
Chief Seattle
1855