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BLACK FRIDAY PREVIEW - 40% OFF Peony 'She's My Star' with code BF24   -   SHOP NOW

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Delphinium Pacific Black Knight

Common name: Larkspur

You will bring a touch of the dramatic to your garden with this stunning, deep blue-black flower.

-10 to -15°C
Good Cut Flowers
Good for Pollinators

Available as:

What will I receive?
Young Plants
3 for £13.00
just £4.33 each
5 for £15.00
just £3.00 each
10 for £17.00
just £1.70 each
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When restraint and subtlety just won't do, a big, beefy delphinium such as 'Pacific Black Knight' can be just the thing. This statuesque plant produces flower spikes up to 1.75m tall, each densely packed with semi-double, deep purple, black-eyed flowers. The moment for these is early summer, though second flush of flowering is possible if spent flower spikes are removed straight away.'Pacific Black Knight' is at its most effective grown in groups, creating a bold, dense, almost forest-like swathe of colour. We love seeing a drift of this towards the back of a mixed border, perhaps with a shrub rose, opium poppies and lupins nearby. Like all delphiniums it will benefit from fortnightly feeding throughout the growing season, particularly if there is to be further flowering. For best results plant in fertile, moist, well-drained soil in full sun, with staked support and shelter from strong, cold winds. 'Pacific Black Knight' is hardy to between -10 C and -15 C. As a short-lived perennial it is often treated as an annual or biennial, though with care and attention can be kept going for longer. H: 1.75m S: 1m.
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Key Information
Latin Name Delphinium Black Knight YP
Common Name Larkspur
Hardiness H5 (-10 to -15°C)
Colour Purple
Format Young Plants
Position Full-Sun, Part-Shade, Part-Sun
Foliage Deciduous
Height in Maturity (m) 1.80 m
Spread in Maturity (m) 0.90
Soil Conditions Chalk Loam Sand
Soil Acidity Acid Alkaline Neutral
Aspect East-facing, South-facing, West-facing
Good for pots Yes
Good for wildlife Yes
Good for pollinators Yes
Good for cutting Yes
Good for groundcover Yes

Our Story

Hayloft was founded by Yvonne in 1992. Since then we have grown into one of the UK’s favourite online plant nurseries.

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