Large-leaved aster
Herbaceous perennial reaching 60-120 cm tall. Features large, heart-shaped basal leaves and clusters of pale blue to white daisy-like flowers blooming in late summer to fall. Prefers moist, well-drained soils and partial shade to full sun. Spreads by rhizomes to form large colonies. Attracts butterflies and other pollinators. Suitable for woodland gardens, naturalized areas, and as groundcover in partially shaded sites.
Plant Details
Bloom Colour: White to Pale Blue
Bloom Time: Late-Summer to Fall
Sun Requirements: Shade to Part-Sun
Moisture: Moist-Drained
Phenology: Basal leaves persist through winter. New growth emerges May. Blooms August-September. Seeds mature October. Basal leaves often remain semi-evergreen.
Wildlife Value: Important late-season nectar source for butterflies and bees; seeds eaten by songbirds; provides ground cover; deer resistant
Habit Over Time: Spreads steadily through underground rhizomes to form extensive colonies of large, ground-hugging leaves topped by flowering stems. The basal foliage creates an effective groundcover, while the flowering stems rise above to create a more open upper layer. Can spread vigorously in optimal conditions but is easily edited where spread is not desired.
Height: Medium (1-3 feet)