Sulfur Cosmos (Cosmos sulphureus) seeds
- Leuchtend-orange Sommerblume mit langer Blütezeit – bienenfreundlich, pflegeleicht & perfekt für Beete und Vasen
- Contents: Approx. 140 seeds
- Open-pollinated variety, seed tested regularly
€2.49
Description
Late Summer Radiance – Flowers Until the First Frost
Orange cosmos (Cosmos sulphureus), also known as sulphur cosmos, is an annual summer flower with wild origins in Mexico and the southern United States. Its brilliantly vivid blooms in shades of yellow, orange, and copper appear from June and often persist until the first frost.
The plant is especially striking when planted in larger groups – its cheerful appearance adds warm bursts of colour to flower beds or naturalistic gardens. The flowers reliably attract bees, bumblebees, and other pollinators, and continue to provide a valuable food source into late autumn, when many other plants have already finished flowering.
Orange cosmos also makes an excellent cut flower: long-lasting, easy to arrange, and stimulated to produce more blooms when regularly cut – the more you harvest, the more flowers follow. Its finely divided foliage and sturdy stems also make it a favourite for late summer bouquets.
Plant profile
| Plant type | Summer flower |
|---|---|
| Use | Container plant, Cut flower, Good insect food plant, Ornamental plant |
| Lifecycle | Annual |
| Seed propagation | konventionell |
| Region of origin | Mexico, North America |
| Characteristics | Food for bees, Needs darkness to germinate, Self-seeds |
| Eventual height | 20-60 cm |
| Flower colour | Orange, Yellow |
| Flowering months | August, July, June, October, September |
Growing instructions
| When to sow outdoors | April, May |
|---|---|
| Sowing depth | 0.5 cm |
| Germination temperature | 15-20°C |
| Germination time | 1-2 weeks |
| Climate | Temperate |
| Soil type | Free-draining, Moderate nutrient levels, Moist |
| Sunlight | Full sun, Halbschatten |
| Water requirement | Medium |
| Planting distance | 30 cm |
| Row spacing | 30 cm |
Sowing and care
Sowing and Care of Cosmos sulphureus
- Plant type: Annual summer flower with wild-type character.
- Sowing: Direct sow outdoors from April or start indoors from March.
- Sowing depth: Approx. 0.5?cm; cover lightly with soil and keep moist.
- Location: Full sun; well-drained, rather low-nutrient soil.
- Care: Very low-maintenance, no fertilisation needed. Cutting encourages flowering.
- Height: 60–100?cm; may require support in windy conditions.
With its extended flowering period, vibrant colours and high ecological value, orange cosmos is a low-maintenance yet striking addition to any garden.
Other names
Botanical name: Cosmos sulphureus
German: Schwefelcosmea, Orange Cosmea, Gelbe Cosmea, Schmuckkörbchen, Kosmea, Kosmee, Mexikanische Aster
English: Yellow Cosmos, Orange Cosmos, Sulfur Cosmos, Mexican Aster
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