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Product Description
Black Knight is a superb Delphinium variety that produces hardy dark purple flowers with black centres. The dark blooms are quite unusual and create an eye-catching display when planted alongside contrasting varieties. Delphinium come from the Greek for 'little dolphin' in reference to the bottle shape of the unopened flowers. These interesting perennials will also make excellent cut flowers for the vase. Reaching a height of 1.5m and flower from June to September. Supplied as UK-grown 7cm module plants.
Plant Size
| Mature Height | 150 cm |
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| Mature Spread | 75 cm |
| Annual Growth | 150 cm |
Planting Notes
| Planting | Plant in a hole deep enough to accommodate the roots |
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| Soil Type | Fertile, well drained soil |
Growing at a glance…
Do not allow the ground to dry out in the summer and water regularly during the flowering period to help prolong their blooms. Delphiniums are able to tolerate most types of garden soil. Plant in prepared (well-drained) soil, in full sun or partial shade. Dig a hole that’s big enough to house the module. Fill around the modules with soil and firm them down gently. Water well once planted.