A dwarf, small-leafed rhododendron smothered in clusters of violet-blue flowers in spring on a compact, twiggy bush. Ideal for rockeries and pots. All parts contain grayanotoxins and are toxic to pets and people.
At a glance
- Plant type: Shrub
- Mature size: 1 m H × 1 m W
- Aspect: part shade or morning sun and full sun
- Water: consistently moist soil
- Frost: hardy
- Maintenance: moderate maintenance
- Origin: Exotic
About Blue Diamond Rhododendron
Rhododendron 'Blue Diamond' is a slow-growing shrub in the Ericaceae family. It reaches around 1 m tall and 1 m wide at maturity, with evergreen foliage. Blue and purple flowers appear in spring.
Where to grow Blue Diamond Rhododendron
Blue Diamond Rhododendron suits cool-temperate climates and grows best in part shade or morning sun and full sun. It is frost hardy and shrugs off cold winters.
Soil & planting
Blue Diamond Rhododendron does best in acidic and free-draining soil. Dig in plenty of compost before planting, water in well, and mulch to keep roots cool.
Watering & feeding
Blue Diamond Rhododendron is consistently moist soil. A feed in spring with a balanced fertiliser keeps growth strong. In its first year, water deeply once or twice a week to settle the roots in, then taper off as it establishes.
Pruning & care
Prune Blue Diamond Rhododendron after flowering to keep it compact and encourage the next flush of blooms. Overall it is moderate maintenance.
Using Blue Diamond Rhododendron in the garden
Blue Diamond Rhododendron earns its place for a feature or specimen planting and pots and courtyard containers. It is equally at home in the ground or a large pot on a balcony or courtyard.
Companion planting & design
For a cohesive, low-care bed, pair Blue Diamond Rhododendron with other plants that enjoy the same consistently moist soil and cool-temperate climate. Group three or five together for impact rather than dotting single plants through the garden.
Good to know
Note that it is toxic to cats and dogs, so site it away from pets that chew. All parts can be toxic if eaten, so keep it away from small children.
Buying Blue Diamond Rhododendron
Plant Sale lists Blue Diamond Rhododendron as potted plants and advanced specimens. Stock isn't live yet — register your interest using the panel above and we'll email you the moment it lands.