Cosmos atrosanguineus 'Flamingo' is a graceful perennial cosmos producing soft pink flowers that float above delicate foliage from summer into autumn.

The open blooms bring a light, airy look to borders while flowering for many months. Once established, plants can return each year when given winter protection.

• Height: 50–70cm
• Spread: 40–50cm
• Flower colour: soft pink
• Flowering time: June to October
• Position: full sun
• Soil: fertile, well-drained soil

About Cosmos atrosanguineus 'Flamingo'

Cosmos atrosanguineus 'Flamingo' forms neat clumps of finely divided foliage. Slender stems rise above the leaves carrying delicate daisy-like flowers.

The blooms appear continuously through summer when faded flowers are removed regularly.

This variety shares its perennial tuberous root system with the well-known chocolate cosmos. It combines the airy appearance of annual cosmos with the reliability of a returning perennial plant.

Plants become stronger over time and can produce increasing numbers of flowers each season.

Benefits for UK Wildlife

Cosmos flowers are valuable for pollinating insects.

• Open flowers allow easy access for bees
• Attracts butterflies and other pollinators
• Long flowering season provides nectar from summer into autumn

Plant in groups within wildlife-friendly borders to create a stronger food source for pollinators.

Where to Grow Cosmos 'Flamingo'

• Sunny garden borders
• Mixed perennial beds
• Cottage garden planting
• Patio containers
• Cut flower gardens

The soft pink flowers combine well with dahlias, ornamental grasses, and other late-summer perennials.

Planting Tips

• Plant tubers in spring after frost risk has passed.
• Choose a warm, sunny position.
• Plant tubers around 5–8cm deep.
• Space plants about 40–50cm apart.
• Use fertile soil with good drainage.
• Deadhead regularly to encourage more flowers.

In colder areas, apply a thick mulch over winter to protect the tubers. Plants will return the following year once temperatures rise.

Why Grow Cosmos atrosanguineus 'Flamingo'

• Soft pink airy flowers
• Long flowering season from summer to autumn
• Attractive to bees and butterflies
• Excellent companion for dahlias and grasses
• Perennial cosmos that returns each year with protection

If you want a light and graceful plant for summer borders, Cosmos atrosanguineus 'Flamingo' provides months of colour and movement in sunny garden spaces.