Reviewing
Cosmos 'Sensation' Seeds26 Aug 2026
Can't go wrong with Cosmos
Lovely packet of seeds, bought one for me and one as gift :)
Gareth
Scabious 'Black Knight' Seeds
Scabiosa 'Black Knight'
Enigmatic, Enchanting Scabiosa 'Black Knight'
Envelop your garden in the deep, dark blooms of Scabiosa atropurpurea ‘Black Knight’. This captivating variety features nearly black, detailed pin cushion-like blooms, providing a striking contrast in any floral arrangement. A magnet for pollinators and a unique choice for cut flowers, its rare hue adds an intriguing element to mixed garden borders, epitomising beauty and mystique in every petal.
Approx 50 seeds
- Low Maintenance
- Pollinator-Friendly
- Compact for Pots
- Cut Flowers
Scabious 'Black Knight' Seeds – Quick Growing Guide
Scabious 'Black Knight' seeds produce striking dark purple flowers ideal for adding dramatic colour to gardens. Sow from January to April or August to September. These pollinator-friendly flowers thrive in full sun with well-drained soil and are perfect for cut flower arrangements.
How to Sow, Grow and Harvest Scabious 'Black Knight' Seeds
- Sow:Jan–Apr, Aug–Sep
- Germination:7–14 days
- Grow:Full sun, well-drained soil, space plants 30cm apart
- Water:Keep soil moist but not waterlogged during growth
- Harvest:Cut flowers when buds open for longest vase life
- Best for:Pots, beds, cut flower gardens
Scabious atropurpurea ‘Black Knight’ enchants with its dark, intricate pin cushion-like flowers. This variety offers a unique contrast in borders and bouquets, attracting pollinators while bringing a touch of mystery and elegance to your garden.
Delivered within 2–3 working days. On its own, this packet ships letterbox delivery at £2.25. Fits through a standard letterbox, so no one needs to be home.
Delivery is priced on the size of your whole order, so adding more may move it into the next band:
- Letterbox delivery — small orders
- £2.25
- Standard delivery — most orders
- £4.50
- Standard delivery (multiple parcels) — large orders
- £7.50
- Free delivery (orders £60 and over)
- Free
Gifting. We can include a handwritten note — add your message at checkout.
More info in our FAQs, or get in touch if something hasn’t arrived.
Grow in Your Garden
Scabious 'Black Knight' Seeds – Dark, Elegant Cut Flowers
Calendar
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
SowFlowers / Harvest
How to Grow
Start Scabiosa 'Black Knight' seeds indoors in January to April or August to September, transferring seedlings outside once frost has passed. They prefer full sun and well-drained soil to develop their distinctive dark, elegant blooms.
Sowing
Sow seeds on firm, damp soil and cover lightly, placing them in a sunny position to encourage germination. Keeping the soil consistently moist supports successful sprouting of these pollinator-friendly flowers.
Growing
Thin seedlings to allow enough space for growth or pot on to containers around 35 cm in size, suitable for balconies, window boxes, or garden beds. This ensures the plants develop well and display their striking cut flowers effectively during June to September.
Plant care
Water Scabiosa 'Black Knight' regularly to maintain moist but not waterlogged soil, especially during dry spells. Deadhead spent flowers to encourage continuous blooming and maintain the plant's neat appearance, making it a low-effort choice for gardeners.
About Scabious 'Black Knight'
Elegant and easy to grow, Scabious ‘Black Knight’ thrives in pots and borders, producing rich, dark blooms on long stems. A favourite for cut flower gardens, it flowers generously through summer and is highly attractive to bees and butterflies.
- Low Maintenance
- Pollinator-Friendly
- Compact for Pots
- Cut Flowers
Eventual height & spread
0.45m
0.9m
History of Scabious 'Black Knight'
Scabious has traditional uses in herbal remedies and originates from the Caucasus region between the Black and Caspian Seas. Its name reflects this heritage, linking the plant to its native habitat.
| Other Names | Pincushion flower |
|---|---|
| Pet/Baby Safe | Non-toxic |
FAQs
It is typically grown as a tender perennial or annual in the UK. It is an annual, completing its whole life in one season, so sow again the following year. Harvest: Cut flowers when buds open for longest vase life. Flowering runs June to September.
It grows up to 60-90cm tall.
Yes, deadheading encourages prolonged flowering.
Sow from January to April, and August to September. Seedlings usually appear in 7–14 days. Watering: keep soil moist but not waterlogged during growth.
Yes — this is a straightforward packet to give, and what makes it work as a gift is mostly timing. Sowing runs January to April, and August to September, so a packet given inside that window can go straight in, and one given outside it keeps perfectly well until the season comes round.
There are approximately 50 seeds in the packet. On effort it looks after itself, which matters if you are giving it to someone new to growing. It suits pots, beds and cut flower gardens, so it works for a small space as well as a garden.
Reviews
No reviews yet for Scabious 'Black Knight' Seeds. If you have grown it, yours would be the first.
Elsewhere in the range
Recent reviews of other Herboo seeds. These are not ratings of Scabious 'Black Knight' Seeds.
Reviewing
Foxglove 'Apricot' Seeds20 Aug 2026
Good card gifts
Bought a couple of these as card gifts for friends and they loved them
Flavia
Reviewing
Verbena Bonariensis Seeds12 Mar 2026
Good tips
Liked how you gave tips on how best to sow. nicely done
Joel C.