Chocolate Cosmos, Black Cosmos, Black Dahlia, Chocolate Plant, Bidens atrosanguinea, Cosmos atrosanguineus 'Chocolate'
Highly sought after, Cosmos atrosanguineus (Chocolate Cosmos) is a tuberous perennial boasting chocolate-scented, velvety deep crimson flowers, up to 2 in. across (5 cm), from mid-summer to fall. Its pinnately divided leaves are often lobed at the base and are attached to the stems by winged petioles. Fairly pest-free and low maintenance, add this charming and graceful plant to the landscape, and you will be rewarded with scores of hummingbirds and butterflies. This profuse bloomer creates a striking visual impact in the garden and looks outstanding when combined with ornamental grasses such as Agrostis nebulosa or Stipa tenuissima. It is also a wonderful plant in containers where its fragrance can be enjoyed.
Hardiness |
7 - 10 |
---|---|
Heat Zones |
1 - 11 |
Climate Zones | 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
Plant Type | Perennials |
Plant Family | Compositae |
Genus | Cosmos |
Common names | Cosmos, Black Dahlia, Chocolate Cosmos |
Exposure | Full Sun |
Season of Interest | Summer (Mid, Late), Fall |
Height | 2' - 3' (60cm - 90cm) |
Spread | 1' - 2' (30cm - 60cm) |
Spacing | 18" (50cm) |
Maintenance | Low |
Water Needs | Average |
Soil Type | Chalk, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Cut Flowers, Fragrant, Showy |
Tolerance | Drought, Deer, Rabbit, Dry Soil |
Attracts | Butterflies, Hummingbirds |
Garden Uses | Beds And Borders, Patio And Containers |
Garden Styles | City and Courtyard, Cutting Garden, Informal and Cottage |
Hardiness |
7 - 10 |
---|---|
Heat Zones |
1 - 11 |
Climate Zones | 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
Plant Type | Perennials |
Plant Family | Compositae |
Genus | Cosmos |
Common names | Cosmos, Black Dahlia, Chocolate Cosmos |
Exposure | Full Sun |
Season of Interest | Summer (Mid, Late), Fall |
Height | 2' - 3' (60cm - 90cm) |
Spread | 1' - 2' (30cm - 60cm) |
Spacing | 18" (50cm) |
Maintenance | Low |
Water Needs | Average |
Soil Type | Chalk, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Cut Flowers, Fragrant, Showy |
Tolerance | Drought, Deer, Rabbit, Dry Soil |
Attracts | Butterflies, Hummingbirds |
Garden Uses | Beds And Borders, Patio And Containers |
Garden Styles | City and Courtyard, Cutting Garden, Informal and Cottage |
How many Cosmos atrosanguineus (Chocolate Cosmos) do I need for my garden?
Plant | Quantity | |
---|---|---|
Cosmos atrosanguineus (Chocolate Cosmos) | 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!