Quick Facts

• Mature size: Approx. 1200–1500mm high x 600–800mm wide

• Position: Full sun

• Foliage: Deep green, lance-shaped leaves

• Flowering: Late summer to autumn

• Flower colour: Pale blue/lilac daisy-like blooms with yellow centres

• Climate tolerance: Frost tolerant

• Water needs: Moderate; drought tolerant once established

• Maintenance: Low

Why You’ll Love It

Boltonia incisa, commonly known as Japanese Aster, is a tall, graceful perennial that brings late-season brightness to borders and mixed perennial plantings.

Planting & Care Tips

• Plant in full sun for the strongest flowering and healthy growth

• Prefers well-drained soil; adaptable once established

• Water during establishment, then moderately once established

• Deadhead spent flowers to prolong the flowering period

• Cut back in late winter or early spring to maintain vigour and encourage new growth