Symphyotrichum novi-belgii 'Bleu Days' - Aster 'Bleu Days'

🌿 Characteristics

Type: Herbaceous perennial
Common name: Blue Days Aster
Scientific name: Symphyotrichum novi-belgii 'Bleu Days'
Flower color: Sky blue to lavender blue
Height at maturity: 0.4–0.6 m
Width at maturity: 0.4–0.55 m
Habit: Compact, bushy, very floriferous
Flowering 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 abundant perennial, Symphyotrichum novi-belgii 'Bleu Days' is a compact variety ideal for borders and mass plantings. It thrives in full sun and tolerates dry soils once established, making it perfect for low-maintenance gardens and naturalistic landscapes.

Regularly remove spent flowers to prolong summer and autumn blooming. A light prune in spring maintains a balanced shape and encourages better branching. Few interventions are needed beyond initial watering and mulching.