Ceanothus ‘Cool Blue’ — Evergreen Shrub, Bee-Friendly, 3L Pot
Ceanothus ‘Cool Blue’ — Evergreen Shrub, Bee-Friendly, 3L Pot
Ceanothus ‘Cool Blue’ — a hardy garden shrub with rich blue and flowering late spring to early summer. A reliable nectar source for bees and pollinators. Supplied as an established specimen in a 3L pot, grown peat-free at our Yorkshire nursery and ready to plant out.
At a glance
- Type: Evergreen Shrub
- Mature size: 1 m – 1.5 m × 1 m – 1.5 m
- Flowering: Late Spring to Early Summer
- Position: Full Sun, Sheltered
- Attracts: Bees, Butterflies & Pollinating Insects
- Supplied as: Single plant in a 3L pot
The detail
Ceanothus 'Cool Blue' is a stunning compact evergreen shrub, commonly known as California Lilac, prized for its profusion of rich blue flower clusters that smother the plant in late spring and early summer. With its neat, bushy habit and small, glossy dark green leaves, this hardy shrub provides year-round structure and interest in the garden. When in full bloom, it creates a striking display that is highly attractive to bees, butterflies and other pollinating insects.
Supplied in a 3 litre pot, this plant is well-established and ready for planting out in borders, against sunny walls, or in large containers on a sheltered patio.
Why ours
Grown by us in Yorkshire, in peat-free compost, shipped in plastic-free packaging. Every plant arrives strong, well-rooted and ready to thrive — not weeks of waiting before it gets going. Each order includes access to our free care app with planting and seasonal care reminders.
How to grow
| Botanical name | Ceanothus 'Cool Blue' |
| Mature size | 1 m – 1.5 m × 1 m – 1.5 m |
| Growth habit | Compact, Bushy Evergreen Shrub |
| Position | Full Sun, Sheltered |
| Soil | Well-Drained, Light to Medium |
| Flowering | Late Spring to Early Summer |
| Hardiness | Hardy (RHS H4) |
| Attracts | Bees, Butterflies & Pollinating Insects |
| Best for | Sunny Borders, Wall-Side Planting, Containers, Coastal Gardens |
Frequently asked
How big will it grow?
1 m – 1.5 m × 1 m – 1.5 m. Most established shrubs reach mature size within 3–5 years.
When should I plant it?
Container-grown shrubs can be planted year-round in the UK, but autumn and spring give the best establishment. Avoid planting in extreme heat or frozen ground.
When does it flower?
Expect flowers from late spring to early summer.
What size pot does it arrive in?
Supplied as a single specimen in 3L pot, well-rooted and ready to plant out or pot on.