Caryopteris clandonensis 'Dark Knight' (Bluebeard) blooms with a profusion of dark blue flowers in late summer when few other shrubs are flowering. Its modest size makes it very useful in smaller yards. A fantastic nectar source for bees and butterflies. Drought resistant/drought tolerant plant (xeric).
36-48" x 48" wide. One of the best Blue Mist Spirea varieties, Caryopteris clandonensis 'Dark Knight' (Bluebeard) has the deepest blue color of them all. Its tidy, upright growth habit and profusion of flowering spikes make it an essential part of the summer landscape. A reliable performer, 'Dark Knight' flowers heavily every year. Of modest size, it can be used in front of low walls, as a hedge or in groups around the base of larger shrubs, small trees and upright evergreens. Avoid heavy wet clay soils. (cutting propagated)
HC018093 HC014509 (Plant - 5" Deep Pot) HC018071 (Tray of 9) - Out of stock.
'Dark Knight' Bluebeard
Caryopteris x clandonensis 'Dark Knight
5, 6, 7, 8, 9
Early to late summer
Average Soil, Sandy Soil, Low Fertility Soil, Well-Drained Soil
Bee Friendly, Attract Butterflies, Deer Resistant, Extended Bloom Time (more than 4 weeks), Good For Hedge / Screen, Low Maintenance, Good For Cut Flowers, Fragrant Flower / Foliage, Rabbit Resistant
Growing Shrubs and Small Trees: The shrubs and trees we sell are 1-2 year-old seedlings. These young plants appreciate some extra attention during their first 3 years in your landscape.
Preferred growing conditions:
Check each species soil preferences before planting. Some do well in clay while others do not.
Mulch with common mulching materials. As they get larger (2 ft. or more in height), thicken the mulch layer to a depth of 2-3 inches.
Even xeric (waterwise) species will establish better and grow more quickly when given regular irrigation during the first 3 years in the garden. As they begin to reach maturity, watering frequency can be reduced to a good deep soaking every 10 to 14 days during the heat of summer.
Plant in full sun or part sun depending on plant preference.
Dig a wide but shallow hole and enrich the soil with ample amounts of compost and Yum Yum. This will help them to grow and mature more quickly.
Most native shrubs and trees are highly recommended for providing wildlife habitat (nesting spots, fruit or seeds for songbirds and mammals, nectar for pollinators).
They are excellent for use to grow as natural (un-sheared!) hedges along fences, property lines and driveways. They live for many years once established.
Fertilize in the fall with Yum Yum Mix and good quality compost. This is most important during the first 3 years in the landscape. Established plants don't need to be fertilized (unless growth is stunted by extremely poor soils).
Where browsing animals (rabbits, deer and others) are a problem, it is advisable to protect young plants with a wire cage. These can be removed after 3-4 years in the ground.
Mulching is essential to maintain the soil moisture these woody plants need to establish their deep growing roots. Be sure and replenish the mulch in fall and summer to keep it sufficiently deep.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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