Calico Aster (Symphyotrichum lateriflorum)

Symphyotrichum lateriflorum, commonly known as Calico Aster, is a native perennial wildflower found in woodlands, woodland edges, savannas, and moist thickets throughout Illinois. It thrives in a variety of soil types—ranging from moist to dry—and grows best in partial shade to full sun, making it a versatile addition to both natural and cultivated landscapes.

This plant features slender, often zigzagging stems with alternate lance-shaped leaves. In late summer to fall, it produces an abundance of small, daisy-like flowers with white to pale pink petals and central disks that change color from yellow to purplish-red as they age—giving the plant its "calico" appearance. Calico Aster typically grows 1 to 3 feet tall, often forming airy, spreading colonies.

For Illinois native plant enthusiasts, Symphyotrichum lateriflorum is a valuable late-season bloomer that supports a wide variety of pollinators, including native bees, butterflies, and beneficial wasps. It is especially important in providing nectar and pollen when many other flowers have faded. The seeds also serve as food for birds, especially sparrows and finches. Calico Aster pairs beautifully with Goldenrods, woodland grasses, and other fall-blooming natives in both formal and wild garden settings.