Caryopteris 'Dark Knight' is a specific cultivar of the Caryopteris genus, commonly known as bluebeard or blue mist spirea. Bluebeard is a small deciduous shrub valued for its attractive blue flowers and aromatic foliage. 'Dark Knight' is a cultivar within this genus, known for its deep blue flowers and compact growth habit.
Here are some key characteristics of Caryopteris 'Dark Knight':
Flowers: The main feature of 'Dark Knight' is its profusion of deep blue flowers. The flowers are small and tubular, appearing in clusters or spikes at the tips of the branches. They typically bloom in late summer or early fall, providing a burst of vibrant color when many other plants have finished flowering.
Foliage: The foliage of 'Dark Knight' is typically gray-green or silvery-green in color. The leaves are lance-shaped and have a slightly aromatic scent when brushed or crushed. The foliage provides an attractive backdrop to the blue flowers and remains appealing throughout the growing season.
Size: 'Dark Knight' has a compact growth habit, typically reaching a height of about 2 to 3 feet (60 to 90 cm) with a similar spread. This makes it suitable for smaller gardens, borders, or mixed perennial plantings. The compact size also makes it suitable for containers.
Growing Conditions: 'Dark Knight' bluebeard thrives in full sun. It prefers well-drained soil and is relatively drought-tolerant once established. It is generally a hardy plant and can tolerate a range of soil conditions. Pruning in early spring can help maintain a compact and tidy shape.
Landscape Use: 'Dark Knight' is often used as a colorful addition to garden beds, borders, or mixed perennial plantings. Its compact size and late-season blooms make it a valuable plant for adding interest to the garden when other flowers may be waning. The blue flowers attract pollinators like bees and butterflies.