Delphinium 'Black Knight Group'
delphinium
Stately spires of semi-double, deep purple flowers, opening in June and July on tall stems. 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 also make excellent cut flowers.
The double, deep blue petals transition to purple, terminating in a dark, unfathomable centre, making Delphinium 'Black Knight Group' a showcase summer plant with plenty of vertical and architectural interest and providing excellent cut flowers.
The double, deep blue petals transition to purple, terminating in a dark, unfathomable centre, making Delphinium 'Black Knight Group' a showcase summer plant with plenty of vertical and architectural interest and providing excellent cut flowers.
How to care for Delphinium Black Knight Group:
For best results, plant in an open spot with fertile, freely-draining soil and protect the young foliage against slug and snail damage.
During the growing season, apply a seaweed or balanced liquid fertiliser every 2-3 weeks. While wearing gloves, stake the emerging flower spike with a stout bamboo cane and tie it in as it grows.
Cutting back the faded flower stems to a flowering side shoot will help encourage a second flush of flowers.
During the growing season, apply a seaweed or balanced liquid fertiliser every 2-3 weeks. While wearing gloves, stake the emerging flower spike with a stout bamboo cane and tie it in as it grows.
Cutting back the faded flower stems to a flowering side shoot will help encourage a second flush of flowers.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
1.7m
Eventual spread:
0.75m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
-
Humans/Pets: Harmful if eaten
9cm pot
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6 × 9cm pots
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