Ceanothus Blue Sapphire 5 Litre Pot

Ceanothus ‘Blue Sapphire’ – Compact Californian Lilac with Intense Blue Flowers

Ceanothus ‘Blue Sapphire’ is a striking evergreen shrub, valued for its vivid cobalt-blue flowers and compact, spreading habit. In late spring to early summer, it becomes covered in dense clusters of intensely coloured blooms, creating a dramatic display that attracts bees and other pollinators.

The foliage is small, glossy, and deep green with subtle bronze tones, forming a dense, low-growing structure that works beautifully in borders or as a ground-covering shrub. Its arching growth habit gives it a relaxed, natural shape, often spreading wider than it grows tall.

Ideal for sunny, sheltered positions, ‘Blue Sapphire’ thrives in well-drained soil and is particularly suited to coastal gardens, where it tolerates wind and drier conditions once established. It is relatively low maintenance and benefits from light pruning after flowering to maintain shape and encourage fresh growth.

Perfect for adding colour, texture, and pollinator interest, this compact Californian lilac is a reliable and eye-catching choice for a wide range of garden styles.

Seasonal Highlights

Spring: Buds form ahead of flowering.
Late Spring–Early Summer: Masses of vivid blue flowers.
Summer: Dense evergreen foliage provides structure.
Winter: Maintains evergreen presence.

Key Features

Vivid blue flowers – Strong seasonal impact.
Compact habit – Ideal for smaller spaces.
Evergreen – Year-round structure.
Pollinator friendly – Attracts bees.
Low maintenance – Easy to grow.

Perfect For

Borders – Adds colour and structure.
Coastal gardens – Tolerant of exposure.
Ground cover – Spreading growth habit.
Cottage gardens – Naturalistic planting.
Pollinator gardens – Supports wildlife.

Growing Tips

Sun/Position: Full sun for best flowering.
Soil: Free-draining soil essential; avoid heavy, wet conditions.
Hardiness: Hardy in the UK in sheltered spots.
Care: Light prune after flowering to maintain shape.

Looks Great With

Lavender – Complements dry conditions.
Grasses – Adds movement and contrast.
Cistus – Mediterranean-style planting.
Santolina – Soft foliage pairing.
Evergreens – For layered structure.