Quick Facts

• Mature size: Approx. 800–1000mm high x 800–1000mm wide

• Position: Full sun

• Foliage: Grey-green, aromatic leaves

• Flowering: Late summer to autumn

• Flower colour: Rich, deep blue

• Climate tolerance: Heat and frost tolerant

• Water needs: Low once established

• Maintenance: Low

Why You’ll Love It

Caryopteris ‘Heavenly Blue’ is a standout late-season shrub, prized for its intense blue flowers that appear just as many other plants begin to fade. Blooming from late summer into autumn, it provides a valuable burst of colour and is a magnet for bees and pollinators. Its compact, rounded form and soft grey-green foliage make it an excellent companion for ornamental grasses and perennial plantings, adding contrast, structure, and seasonal interest. Tough, reliable, and easy to grow, this shrub is ideal for sunny borders and naturalistic garden designs.

Planting & Care Tips

• Plant in full sun for best flowering and compact growth

• Prefers well-drained soil; avoid heavy or waterlogged sites

• Water during establishment, then sparingly once established

• Prune back hard in late winter or early spring, as flowers are produced on new growth