Dark knight seeds

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Hardiness: Perennial in USDA zones 10 and warmer, although usually grown as an annual.

Plant Dimensions: 18″–24″ tall, 18″ wide

Variety Information: Very dark burgundy flowers reveal contrasting white stigmas as flowers mature, resembling pincushions.

Exposure: Full sun to part shade

Bloom Period: Summer to frost

Attributes: Attracts Pollinators, Cut Flower, Deer Resistant, Drought Tolerant

When to Sow Outside: 1 to 2 weeks after your average last frost date.

When to Start Inside: RECOMMENDED. 6 to 8 weeks before your average last frost date. Ideal soil temperature for germination is 60°–70°F.

Days to Emerge: 10–15 days

Seed Depth: ⅛”

Seed Spacing: A group of 3 seeds every 12″

Thinning: When 1″ tall, thin to 1 every 12″

Harvesting: For longest vase life, harvest flowers in the morning, choosing blooms that have just begun to show good color but are not yet open.

Black Knight Scabiosa Pincushion Flower Seeds Reviews

Scabiosa Black Knight

I saw this plant at Denver Botanic Gardens and was so excited to see you had it in the catalog. It came up beautifully and is just as imagined.


I’m not sure if anyone else had this experience, but last fall I sowed all the seed from one packet of these (2018 seed) and they’ve just bloomed and are ALL WHITE. No color at all in them. They’re lovely, just the opposite of what I was expecting.

Owner Response: Thank you for letting us know about this issue. We do not have any other report of any similar issues with this seed. A customer service specialist will be contacting you shortly to help with the issue. Thank you, again.

Didn’t work out

Owner Response: Thank you for taking the time to share your experience with this cultivar. Like many perennials, these do take some time to flower and starting them indoors can be really helpful in speeding up flowering. An abundance of nitrogen can also result in lush plants with little to no flowers. Please feel free to contact our horticulturists with questions at any time, [email protected]

long lasting dark beauty

Started seed indoors, put transplants outside. Very long blooming period as mentioned. I staked my plants and they had a dozen heads that bloomed in a row. So pretty and a great contrasting flower against my pink garden phlox and peach four o’clocks.

Sweet flowers, low germ rate

I grew these to use as cut flowers and for dye plants. The germination rate was very low and I had to do multiple successive sowings.

Owner Response: Hello Aimee, Thank you for taking the time to write a review. We are sorry you experienced a low germination rate with the scabiosa seeds. Our seeds are tested frequently by a third-party laboratory to ensure germination rates exceed federal standards and our own. A customer service agent will be with you soon to help with the issue.

Not so good

Owner Response: Hello Vj , We are sorry you experienced poor germination with these seeds. A customer service agent will contact you shortly to help.

Love this flower.

Black knight scabiosa

Only started 4 so far indoors using my biodome. 100% germinated within a week. All now have 4 sets of true leaves in just under 3 weeks. I will be uppotting them soon and continue to grow indoors until spring. Can’t wait to see them flower! I stumbled upon this website accidentally and am impressed with the germination rates so far thank you Botanical Interests!

12 seeds

Excited to start these today, especially after reading the reviews. However I think my packet had 12 not 25 seeds or maybe there are more seeds within each of these pods?

Owner Response: Dear Debra, Thank you for notifying us of this issue. We apologize you received a packet that was short seed and we would like to make this right. A customer service agent will be contacting you shortly about a replacement packet.

So. Many. Blooms.

This is the first year I’ve grown Scabiosa, and they have quickly become a new favorite for using in flower arrangements. They do need some support to stay upright, but the color is such a deep, rich burgundy, garden pests don’t seem to bother them, and the plants keep churning out bloom after bloom. Long, strong, foliage-free stems make them perfect bouquet flowers.

Black Knight Scabiosa Pincushion Flower Seeds

This was my first year growing the Black Knight Pincushion flower from seed. Almost every seed germinated however with the colder & rainy spring here, most of my seedlings that I transplanted into pots fell victim to “damping off”. Fortunately, I hesitated to pull them and gave them a chance and eventually the bees (and I) were rewarded with the most beautiful flowers! Hopefully next year’s Spring will be more cooperative.. 🙂

Owner Response: Hi Amy, Sprinkling cinnamon around seedlings stifles fungus, like dampening off, in case that is helpful.

Black Knight Scabiosa

Very pretty flowers, healthy plants. I’ve been dropping the seed heads in the garden all season for more plants in 2022.

Butterfly magnet

This scabiosa was winter sown, then transplanted into a big terra cotta pot on my patio. Prime growth was mid-summer, and it attracted Skipper butterflies.

Rich deep, dark red

I started some seeds indoors and some by winter sowing. Better germination with winter sowing. Once planted in the garden they grew well and produced beautiful deep, deep red flowers over several months. Good cutting flower too, with long vase life.

Scabiosa Black Knight Seeds

Scabiosa are an easy to grow and dependable burst of color. Sturdy little flowers on long stems rise above a pretty mound of foliage, and have a cottage garden feel with an urban edge.

  • HEIGHT 2-3ft when full grown
  • SPACING 9-12″ between plants
  • LIGHT Full sun, or part-shade
  • ZONE Grows everywhere in the USA (annual in zones 2-6, tender perennial in zones 7-11)
  • INCLUDES 25 seeds
  • Botanical Name Scabiosa atropurpurea
In your garden! (tag @theplantgem to add your pics)


The rich burgundy color of Black Knight Scabiosa is so dark it’s almost black, topped with lilac sprinkles. You can also boil the blooms for about 10 minutes to make an easy dye for your dainties.

  • DEER Deer resistant
  • KIDS+PETS Non-toxic
  • CLIMATE Heat loving
  • WATER Drought tolerant
  • INDOOR+POTS Grows well in containers outside.
How to Plant

Sprinkle into the dirt 1/8″ deep or less, as they need light to germinate. Space 2″ apart. Water gently & regularly as seedlings emerge over the next 2 weeks. Once babies are 2” tall, pluck so there’s just one per 12″.

Where to Plant

Find a place that gets a decent amount of sun.

When to Plant

Spring, after last frost, or start inside 6 weeks earlier.

When to Expect Blooms

Blooms all summer

Care Instructions

Water regularly until they get established, and then give them extra water during dry spells. Pick the flowers to encourage more blooms.

Extra Credit

Foliage is evergreen in mild climates (leaves stay green through winter).