Cosmos bipinnatus ‘Xanthos’ | Soft Yellow Cosmos | Compact Cut Flower Variety

Cosmos bipinnatus ‘Xanthos’ | Soft Yellow Cosmos | Compact Cut Flower Variety

Cosmos bipinnatus ‘Xanthos’ is a unique and award-winning variety that stands out for its soft, creamy-yellow blooms — a rare color among cosmos. Compact, early-flowering, and highly productive, this variety brings a delicate, romantic charm to borders, containers, and cut flower arrangements.

Unlike traditional tall cosmos, ‘Xanthos’ has a more compact habit with sturdy stems and an abundance of blooms that last all summer long. Its soft yellow tones blend beautifully with pastel shades, making it a favorite among florists and garden designers seeking a fresh, elegant color palette

Plant Details

• Botanical name: Cosmos bipinnatus ‘Xanthos’
• Common name: Garden cosmos, Mexican aster
• Family: Asteraceae
• Plant type: Annual
• Height: 50–60 cm
• Spread: 30–40 cm
• Flower color: Soft lemon to pale butter yellow
• Flower size: 5–7 cm
• Blooming period: June – October
• Position: Full sun
• Soil: Fertile, well-drained
• Pollinator-friendly: Yes
• Use: Borders, containers, cut flowers, cottage gardens

Sowing & Growing Instructions

• Sow indoors: March – April at 18–22°C. Sow on the surface and cover lightly with compost.
• Germination: 7–10 days.
• Transplant: When seedlings are large enough to handle, transplant into pots or trays.
• Plant outdoors: After the last frost, spacing 25–30 cm apart.
• Direct sow: Possible from May in warm, well-drained soil.
• Care: Deadhead regularly to promote continuous flowering. Water moderately and provide support if necessary.

Ideal Uses

• Excellent for cut flowers and compact summer bouquets
• Perfect for borders, beds, and containers
• Soft yellow tones harmonize with pastel and white flowers
• Attracts bees and butterflies

Cultivation Notes

‘Xanthos’ is the first truly yellow cosmos variety and a Fleuroselect award winner for its beauty and garden performance. It offers months of delicate color and light texture, making it a standout choice for both gardeners and florists who value elegance and reliability.