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<i>Delphinium</i> 'Black Knight Group'
<i>Delphinium</i> 'Black Knight Group'
<i>Delphinium</i> 'Black Knight Group'
<i>Delphinium</i> 'Black Knight Group'
<i>Delphinium</i> 'Black Knight Group'
<i>Delphinium</i> 'Black Knight Group'

Delphinium 'Black Knight Group'

delphinium

Position: full sunSoil: fertile, well-drained soilRate of growth: average Flowering period: June and JulyHardiness: fully hardyStately spires of...

3 × 9cm pots
£21.00 £23.97
In stock (shipped within 3-5 working days)
9cm pot
£7.99
In stock (shipped within 3-5 working days)
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Named Day £10.99

Dark strong verticals, of deep purple-blue flowers with sultry black eyes, in summer -perfect with a cocktail of pale lemon achilleas and anthemis Val Bourne - Garden Writer

How to get more flowers

How to get more flowers

Many flowering plants can be encouraged to produce better and longer-lasting displays with the minimum of effort. A plant produces flowers in order to reproduce and ensure the survival of the species. Once a plant has flowered and fertilisation has taken

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Cottage garden

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Get more flowers

Deadheading will prevent them setting seed and so use their energy producing a further flush of blooms later on. Plants that respond well to deadheading include annuals such as Ageratum, Alyssum, Antirrhinum, Calendula, Centaurea, Cosmos, Dahlia, foxglove

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The Chelsea Chop (and other methods of extending the flowering season)

Many gardeners who are happy, even gung-ho, with the secateurs when pruning shrubs and climbers are surprisingly reluctant to take the shears to herbaceous perennials. Maybe this is because it just doesn't seem quite right to be cutting back all that new

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