Aster azureus (Sky Blue Aster)

Aster azureus (Sky Blue Aster) is a rhizomatous perennial boasting a profusion of small daisy-like flowers, 1 in. wide (2.5 cm), with 10-20 deep blue to lavender rays surrounding yellow centers. Blooming in the fall, the airy blossoms are borne in elongated spreading clusters at the branch tips. The foliage of heart-shaped leaves, 4 in. long (10 cm), turns reddish in the fall. Sky Blue Aster makes a substantial statement in the late season garden. Native to North America, it is easy to grow, brings cheerful fall color and is a great source of nectar for butterflies. It looks great in meadows, prairies or naturalized areas and is an important component in a prairie restoration.

• Grows up to 24-36 in. tall (60-90 cm) and 18-24 in. wide (45-60 cm). Will spread by rhizomes and self-seeding in the garden.
• Thrives in full sun to light shade in average, dry to medium, well-drained soils. Provide good air circulation to avoid foliage diseases such as powdery mildew. Drought and dry soil tolerant.
• Vital ingredient of fall borders, cottage gardens, rock gardens, prairies or butterfly gardens.
• Cutting back after flowering will prevent undesired self-seeding.
• No known serious pest or disease issues. Keep an eye out for powdery mildew.
• Sow seeds outside in fall or provide cold stratification. Can also be propagated by softwood cuttings taken in late spring.
• Native to eastern North America.