Quick Facts

• Mature size: Approx. 600–800mm high x 500–600mm wide

• Position: Full sun

• Foliage: Deep green, finely textured leaves

• Flowering: Late summer to autumn

• Flower colour: Rich purple, daisy-like blooms

• Climate tolerance: Frost-tolerant

• Water needs: Moderate; drought tolerant once established

• Maintenance: Low

Why You’ll Love It

Aster ‘Otis’ is a bold and vibrant perennial, valued for its striking purple blooms that appear from late summer through to autumn. Its long flowering season provides consistent colour, while the rich purple flowers contrast beautifully with softer pastel perennials, grasses, and silvery foliage plants. This hardy and reliable variety is perfect for adding drama and vibrancy to any garden design.

Planting & Care Tips

• Plant in full sun for best flowering and strong colour

• Prefers well-drained soil; adaptable once established

• Water during establishment, then moderately once established

• Deadhead spent blooms to encourage continuous flowering

• Cut back stems in late winter or early spring to refresh growth