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Delphinium 'Black Knight'
Hardy Perennial
What is Hardy Perennial?
An outright cottage garden classic
A long-lasting display of colour
Some of the deepest indigo-blue flowers
Delivery Information View Product DescriptionLoading...Description How to Grow More Info Delivery ReviewsDelphinium 'Black Knight' is an outright cottage garden classic. This particularly exceptional variety bears some of the deepest indigo-blue flowers, each with a striking black eye. For maximum impact, plant Delphiniums in bold clumps at the back of a sunny border; they are perfect for adding height and colour. These outstanding perennials will certainly attract lots of attention when planted in your garden. Delphinium 'Black Knight' flowers from early summer, often flowering twice, ensuring a long-lasting display of colour. Height: 1.7m (5.5'). Spread: 75cm (29").
Height Up to 170cm (67in)
Spread Up to 75cm (30in)
Hardy Perennial
cut flower gardencottage gardens
full sunFlowering MonthsJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECJFMAMJJASOND
2 x 1 Litre Potted Plants (V59653P)
1 x 1 Litre Potted Plant (58418)
3 x 1 Litre Potted Plants (T77507P)
2 x 1 Litre Potted Plants (T58419P)
1 x 9cm Potted Plant (KB0896)
3 x 9cm Potted Plants (KB1049)
2 x 9cm Potted Plants (KB1048)
Plant Delphinium out in sheltered sunny borders in moist well drained soil. Incorporate plenty of well rotted manure or garden compost into the soil prior to planting. Water well to settle the soil.Feed and water regularly until plants are established. When shoots reach a height of 30cm, the tall stems will require staking with garden canes for support. Remove old delphinium flowers as soon as they fade to encourage another flush to be produced later in the season. In autumn, remove old foliage and apply a mulch of well rotted manure to the base of the plant. Lift and divide in autumn every third year to maintain their vigour.Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.
Orders for packets of seed incur a delivery charge of £2.99.
Orders which include any other products will incur a delivery charge of £6.99.
Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.
Large items may incur a higher delivery charge - this will be displayed in your shopping basket.
Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.
For more information on how we send your plants please visit our Helpful Guide on plant sizes.
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