Clusters of dark blue flowers in August and September and slightly toothed, aromatic, grey-green leaves, silvery green underneath. This beautiful, RHS award-winning shrub forms a rounded, mound-like shape.
Caryopteris x clandonensis 'Kew Blue' is perfect for the front of a sunny, well-drained border, and the dark-blue flowers are a magnet for butterflies and bees.
How to care for Caryopteris x clandonensis Kew Blue:
Plant Caryopteris in a sunny, well-drained spot—it's not tolerant of wet or heavy soils, especially in winter. Improve drainage before planting if needed by adding grit or organic matter. These small, deciduous shrubs prefer a sheltered site and do best against a warm wall or in a border that gets plenty of sun.
Once established, they’re drought-tolerant and low maintenance. In early spring, cut back all flowered stems hard to a low, woody framework to encourage strong new growth. After pruning, apply a 2-3in (5-7cm) mulch of well-rotted compost to help retain moisture and boost soil nutrients.