Delphinium

Delphinium Black Knight Group

Delphinium - Delphinium  Black Knight Group

Common Name: Delphinium
Genus: Delphinium
Cultivar: Black Knight Group

Category: Perennials
Growth Rate: Average
Features: Makes good cut flowers, Has interesting foliage

Hardiness: HardyHeight: 1.70 m (170 cm)
Sun/Shade: Full sunSpread: 0.75 m (75 cm)

Foliage Type: DeciduousFlower Colour: Purple
Foliage Colour: GreenFlowering Period: June & July

Soil Type: Normal/Loam
Soil Moisture: Moist, but well drained

Stately spires of semi-double deep purple flowers with black eyes open in June and July on tall stems with pretty deeply cut leaves. These dark-eyed delphiniums look fantastic planted in bold clumps as part of a cottage-garden scheme or towards the back of a well-drained sunny border where they will add height and bold splashes of colour. They make excellent if short-lived cut flowers.

  • Garden care: Protect young foliage against slug and snail damage in spring. Stake with bamboo canes in mid-spring before the flowers appear. During the growing season apply a balanced liquid fertiliser every 2-3 weeks and wearing gloves cut back the faded flower-stems to a flowering side-shoot to encourage repeat flowering. At the end of autumn cut back and compost the faded flower stems.


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