Cosmos, Purity
Cosmos, Purity
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Cosmos ‘Purity’
Standard pack: 30 seeds.
A true garden classic, loved for its delicate, pure‑white flowers held above soft, feathery foliage. It’s one of those varieties that instantly lifts a border, helping surrounding colours pop while adding lightness and movement all summer long.
Flowering from July right through to the first frosts, it brings height and elegance to cottage gardens, cutting patches and wildlife‑friendly borders. The long stems make it an excellent cut flower, and regular deadheading will keep the blooms coming for months.
Cosmos thrives in full sun and poorer soils, making it wonderfully easy to grow — a brilliant choice for beginners and experienced gardeners alike.
Key information
- Sow: February to May
- Germination: 7 - 15 days
- Blooms: July to October
- Height: to 100cm | Spread: to 60cm
- Half-hardy annual
- Full sun
For more information on growing cosmos, check out our growing guides.
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Growing Guides from Collie Flowers
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