'Dark Knight' has the deepest blue colour of any Caryopteris that we know. Its tidy, upright growth habit and profusion of flower spikes on silvery green foliage make it an essential part of the summer. Ideal Conditions: Prefers full sun, or partial shade with free-draining, but moist soil or compost. Possible Situation: An ideal shrub for patio container and can be planted into the border in autumn for further enjoyment. Resilience: Hardy Habit: Clump Forming Height x Spread / Trail: 60 x 50 cm Features: Typical Season: Summer Flower Colour: blue Foliage Colour: silver/grey green Flowering Time: July - September Planting Recommendations: Bed/Border Raised Bed Container Prefers: Full Sun Part Sun Temperature Tolerance: A hardy plant which should survive normal winter conditions outside, especially if protected from the hardest frosts.
