Delphinium ‘Black Knight’

Striking spires of dark purple, semi-double flowers from early summer

Established plants in 2 litre containers

Description

Delphinium ‘Black Knight’ is a glorious, statuesque plant that packs a real punch in mid-summer. The foliage emerges in spring and forms a clump quickly, before statuesque flowering spires emerge from the base from early summer onwards and open out a few weeks later into masses of deep, rich purple, semi-double flowers. Delphiniums are classic cottage garden plants, a plant for the back of borders that puts on a real show when planted in groups.
These established, garden-ready plants have been grown at our nursery in Cornwall and are provided in 2 litre containers. In good soil they can grow upwards of 150cm (approximately 5 feet), with a spread of around half of that.

Growing Advice

As with all Delphiniums, we find there are two things this plant needs to do really well. First, some protection from slugs – particularly when the foliage first emerges in spring (once the plant has got going the slugs tend to leave it alone). And second, some form of support for the flowering spikes, which is better provided before the spikes emerge. Alternatively you can plant them in more sheltered locations, as we do, ensuring the plants still get enough sun. They are not hugely fussy otherwise and if you can provide them with some support (they will also often support each other if planted in groups) will flourish in good soils.

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£9.75

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Before ordering with us please make sure you read the pages below to help you understand what to expect when buying plants online from a nursery such as ours. For instance the photographs in our listings are intended to give you an impression of our plants in their mature (and usually flowering) form. The last photograph in this listing provides an indication of the size of the plant to expect when you buy from us. It is not a guarantee of the way the top growth will look when you receive the plant(s), as this will depend on the time of the season you have ordered the plant and it simply isn’t possible to provide photographs of the plants at every stage of growth during the year. Plants ordered in spring, autumn or winter for example may have much reduced or tired top growth that will regrow later in the season / the following season and you should be aware of this when ordering at these times. If you have any questions about the current condition of any of our plants please do get in touch, or see the links below for more information about what to expect. 

 

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