Masses of 1" wide blue to violet blue daisies with a yellow eye seemingly cover up this perennial in late summer and fall providing nectar for pollinators including bees and migrating Monarchs. Bluebird Smooth Blue Aster, a selection of Symphyotrichum laeve (previously Aster laevis), was the top rated aster in trials at Mt. Cuba Center. It has a naturally upright to vase-shaped, clump-forming habit and grows to 3-4' at flowering but can be pinched in late spring or early summer to produce a fuller more compact plant. The Smooth Blue Aster is found throughout much of the US and into Canada. Provide a well-drained, average to semi-dry soil in full sun conditions for optimum vigor and flowering although it is tolerant of a wide range of growing conditions. In semi-shade it may require staking. Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Images courtesy of North Creek Nurseries, all rights reserved. Item# 12247