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Delphinium Black Knight in the GardenTags plant encyclopedia

Delphinium 'Black Knight'

 

Delphinium 'Black Knight'

Tall, 1.5m cottage garden spikes covered in beautiful dark violet flowers with black centres. Care should be exercised when handling all Delphiniums as they are toxic to humans and livestock. Delphiniums are perennials grown for their spikes of summer flowers in shades of blue, pink, white, and purple. They have been grown in cottage gardens for many years. They are not easy to care for, prefering moist, cool summers to hot, dry summers. The plants also dislike wind and heavy rain and apart from the dwarf perennials, most delphiniums need staking.

 
plant Features
  • Delphinium Black Knight likes full sun to partial shade

    Full sun to partial shade

  • Delphinium Black Knight likes occasional watering

    Occasional watering

  • Delphinium Black Knight is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Delphinium Black Knight likes rich and free draining

    Rich and free draining

 
plant information

Common name

Delphinium 'Black Knight'

Latin name

Delphinium 'Black Knight'

type

Perennial

family

Ranunculaceae

ph

5.0 - 7.5 Acid - Neutral

  • Light

    Delphinium Black Knight likes full sun to partial shade

    Full sun to partial shade

  • Frost

    Delphinium Black Knight is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Delphinium Black Knight likes rich and free draining

    Rich and free draining

  • Water

    Delphinium Black Knight likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Delphinium Black Knight is 0.40meters x 1.00meters 0.40 M 1.00 M

Delphinium 'Black Knight'

Tall, 1.5m cottage garden spikes covered in beautiful dark violet flowers with black centres. Care should be exercised when handling all Delphiniums as they are toxic to humans and livestock. Delphiniums are perennials grown for their spikes of summer flowers in shades of blue, pink, white, and purple. They have been grown in cottage gardens for many years. They are not easy to care for, prefering moist, cool summers to hot, dry summers. The plants also dislike wind and heavy rain and apart from the dwarf perennials, most delphiniums need staking.


Planting young plants

From Early Spring TO Mid Spring

Delphiniums are very difficult to grow from seed. Buy as a potted plant at the nursery. Plant in the spring. Prepare the soil, mixing in 2 to 4 inches of compost. Dig a hole twice the diameter of the plant’s container. When planting, ensure that the top of the root ball is level with the soil. Insert supports no later than midspring or when the plants reach 12 inches high. Stake the low-growing perennials with twiggy, brushwood support. The taller, large-flowered delphiniums need sturdy stakes.

 

Flowering Season

From Early Summer TO Late Summer

Delphiniums are perennials grown for their showy spikes of colorful summer flowers in gorgeous shades.

 

Propagating by cuttings

From Early Spring TO Mid Spring

Take Basal cuttings when young emerging shoots have two or three pairs of leaves, take a thin portion of parent tuber or root material with the shoot

 
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