Symphyotrichum cordifolium - Blue Wood Aster

🌿 Features

Type: Herbaceous perennial
Common name: Heart-leaved aster
Scientific name: Symphyotrichum cordifolium
Flower color: Soft violet-blue
Mature height: 0.9–1.2 m (3–4 ft)
Mature width: 0.6–0.8 m (2–2.5 ft)
Habit: Upright, airy, naturally graceful
Bloom period: August to October
Exposure: Full sun to partial shade
Watering needs: Moderate
Soil type: Well-drained, fertile
Hardiness zone: Zone 3 to 8
Drought tolerance: Good
Melliferous plant: Yes
Attracts pollinators: Yes
Toxicity to animals: Non-toxic

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✂️ Care

A hardy and reliable perennial, Symphyotrichum cordifolium is a generous plant that requires little care. It thrives in full sun and tolerates dry soils once established, making it perfect for low-maintenance gardens and naturalized settings.

Regularly remove spent flowers to prolong the autumn bloom. Light pruning in spring helps maintain a balanced shape and encourages better branching. Few interventions are needed beyond initial watering and mulching.