Very Dark Purple Knapweed, Centaurea benoistii, Maroon cornflower, Cheirolophus benoistii
Centaurea atropurpurea (Dark Purple Knapweed) is a clump-forming, woody-based perennial with deep ruby-red, thistle-like flowers in summer. Attracting bees, butterflies and other admirers, the blossoms open from attractive bronze-colored scaled buds. They sit atop strong, upright stems above a rosette of feathery, silver-gray leaves. Native to Romania and the Balkan Peninsula, this striking plant with curious reddish – purple flowers is perfect for the water-wise garden.
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Compositae |
| Genus | Centaurea |
| Common names | Cornflower |
| Exposure | Full Sun |
| Season of Interest | Summer (Early, Mid, Late) |
| Height | 3' - 4' (90cm - 120cm) |
| Spread | 1' - 2' (30cm - 60cm) |
| Spacing | 24" (60cm) |
| Maintenance | Low |
| Water Needs | Low |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Cut Flowers, Showy |
| Tolerance | Drought, Deer, Rabbit, Dry Soil |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Prairie and Meadow, Informal and Cottage, Gravel and Rock Garden, Coastal Garden |
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Compositae |
| Genus | Centaurea |
| Common names | Cornflower |
| Exposure | Full Sun |
| Season of Interest | Summer (Early, Mid, Late) |
| Height | 3' - 4' (90cm - 120cm) |
| Spread | 1' - 2' (30cm - 60cm) |
| Spacing | 24" (60cm) |
| Maintenance | Low |
| Water Needs | Low |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Cut Flowers, Showy |
| Tolerance | Drought, Deer, Rabbit, Dry Soil |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Prairie and Meadow, Informal and Cottage, Gravel and Rock Garden, Coastal Garden |
How many Centaurea atropurpurea (Dark Purple Knapweed) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Centaurea atropurpurea (Dark Purple Knapweed) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
Join now and start creating your dream garden!
