Sweet Pea 'Black Knight'

Sweet Pea 'Black Knight' is a crimson black, old-fashioned, highly scented sweet pea. More
20 seeds 040004 £2.50 In stock
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When in stock, please allow 2-3 days for despatch.
4 seedlings 190323-4 £7.50 Delivery mid June
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When in stock, please allow up to 3-4 weeks for despatch. For fruit & veg bare roots/crowns, please allow up to 2 weeks for despatch.

Or buy this as part of our Venetian Sweet Pea Mix.

More Details

Sweet Pea 'Black Knight' is a crimson black, old-fashioned, highly scented sweet pea. 8/10 scent.

The result of Henry Eckford's work in the late 19th century is the Grandiflora group of sweet peas which, until this year, formed 90 per cent of the varieties I grow. They have what are now considered to be relatively small flowers and short stems with three, sometimes four flowers to a stem, but many of them are irresistible, with wonderful, strong scent and great dignity and elegance.

No garden is complete without sweet peas. Grow them over arches, teepees and trellis and plant them with your runner beans to draw lots of insect pollinators into your veg patch. Sweet peas are all easy to grow and will fill your garden and house with the best scent ever.

Genus Lathyrus
Group/Species odoratus
Variety Black Knight
Common Name Sweet Pea
Border Position Cutting Garden, On a Climbing Support
Soil Type Broad Tolerance
Scent Scented
Site Full Sun
Moisture Moist but Well-drained
Height 1.8m (6ft)
Spacing 15cm
Sowing, Seeds, Planting Sow October to April, 2 seeds into 1 Rootrainer. When roots fill container, pot on 2 seedlings together into a 1 litre pot. Pinch out tips when plants have 4 pairs of leaves. If autumn sown, overwinter in a light, cool place.
Care Tips Remove the climbing tendrils as they grow. Tie the stem into your framework on a regular basis. Can be grown in deep container pots up a climbing frame. Find out how to cordon train your sweet pea in Sarah's how-to guide.
Flowering May - August (winter-sown) or June - September (spring-sown), or 12-14 weeks from spring-sowing of seed.
Vase Life 4-5 days. Avoid direct sunlight and heat. This has a beautiful scent.
Harvesting Keep picking as often as you can.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
Advice & Videos
Sweet peas at Perch Hill

Read about how we grow our sweet peas at Perch Hill.

How to grow sweet peas from seed

Find the best method of growing sweet peas from seed for strong, productive plants.

How to sow sweet peas in winter

Sarah shows you how to sow sweet pea seeds in the winter for more productive plants in the summer months.

How to Plant Sweet Pea Seedlings

Sarah shows us how to plant her recently delivered sweet pea seedlings.

How to cordon train your sweet peas

Discover how to cordon train your sweet peas for magnificent plants.

The sweet pea story

 Find out the fascinating story behind the sweet pea.

How to tie in your sweet peas

In this quick video, Sarah shows you how to tie in your sweet peas for greater production and straighter, longer stems.

Why you should deadhead your sweet peas

Sarah shows you how to deadhead your sweet peas, and tells you why it's important to do so, along with her philosophy of 'the generous gardener gets...

How to make a sweet pea table centrepiece

Sarah shows us how to make a really quick and easy, colourful table centrepiece with sweet peas, something that is perfect for a summer party or...

Layering sweet peas

If you want sweet peas with spectacularly long, perfectly straight stems and lots of large flowers on each stem, it's a good idea to layer them.

Delivery

Plant Delivery - When in stock, please allow up to 3-4 weeks for despatch. For fruit & veg bare roots/crowns, please allow up to 2 weeks for despatch.

Seeds Delivery - When in stock, please allow 2-3 days for despatch.

Click here to find out more information about our delivery rates and times.

Sweet Pea 'Black Knight' reviews

* * * * - Average based on 4 reviews

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Reviewed 20th December 2020 by Sarah

I never received my order. My email request for information has been unanswered. I still want the product, not a refund, but i'm currently in limbo not knowing whether its been lost or forgotten.

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Reviewed 31st July 2019 by Pamela

Have already explained in my first answer.

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Reviewed 31st July 2019 by Christine

As above, blooming well. I am not happy that the survey will not let me continue unless I write mor, tempted to give up at this stage, especially since it is sopposed to be optional,

What a fragrance! What a colour!

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Reviewed 23rd February 2018 by Petra

I have bought seeds several years ago. What a fragrance experience. The stems are not very long but it can be still cut and put in adequate vase to enjoy them. Just sitting nearby at dusk is unforgivable experience. I personally love the rich smell which carries well through the air and the rich colour which suits my garden fragrant scheme. I have been growing these peas since.