Here at the farm, I interweave Aromatic Asters with Summer bloomers like Yarrow (Achillea millefolium) and Monarda in borders. Growing 2’ in full sun Aromatic Asters provide a green space for many caterpillars to hide. When the blooms of the Monarda and Yarrow are long past the flowers of Aromatic Aster put on a stunning show in Autumn.