606 Cosmos ‘Sonata’ Tray

This compact cosmos series produces charming, daisy-like flowers above finely divided, airy foliage, creating a soft, cottage-garden look throughout the summer.

Known for its more compact growth habit compared with taller cosmos varieties, ‘Sonata’ is an excellent choice for garden borders, containers and mixed annual displays. Its open flowers also attract bees and butterflies, adding movement and life to sunny outdoor spaces.

Why You'll Like It

Beautiful Daisy-Like Blooms: Enjoy cheerful flowers that bring a light, colourful feel to summer gardens.

Compact Growth: The ‘Sonata’ series is well suited to smaller spaces and containers where a more manageable cosmos is desired.

Pollinator Friendly: Open flowers provide an attractive landing place for bees, butterflies and other beneficial pollinators.

Long Summer Display: With adequate sunlight and regular care, cosmos can flower for an extended period through the warmer months.

 

Growing Information

Light Requirements: Plant in full sun for the best flowering and strongest growth.

Planting: Transplant outdoors after the danger of frost has passed into well-drained soil. Space plants to allow airflow and room for mature growth.

Maintenance: Remove spent flowers to encourage continued blooming. Avoid excessive fertilizing, as overly rich soil can encourage foliage growth at the expense of flowers.

Long-Term Care: Cosmos are generally grown as annuals in coastal British Columbia. Collect seeds from mature flowers if desired, or allow some flowers to set seed naturally.

Great For

Sunny garden beds • Garden borders • Patio containers • Cottage gardens • Pollinator gardens • Mixed annual displays • Summer cut flowers

Color

Wholesale: Please refer to the Hilltop Greenhouses Ltd. Policies PDF for full details.

Retail: No returns on plants, exchanges only.

Plant details

Scientific Name

Cosmos bipinnatus ‘Sonata’

Light

Full Sun

Water

Water regularly while plants establish. Once established, cosmos tolerate some dryness, but consistent moisture supports healthy growth and flowering. Avoid waterlogged soil.

Care Level

Easy to grow and relatively carefree. Water regularly during dry periods, remove spent blooms to encourage continued flowering, and provide support if plants become tall or leggy.

Optimal Temperature

18–24°C (65–75°F) — Thrives in warm conditions with plenty of sunlight. Cosmos ‘Sonata’ tolerates summer heat well but grows best in mild to warm temperatures.

Frost Tolerant

No

Mature Height

Approximately 18–24 inches, depending on cultivar and conditions

Mature Spread

Approximately 12–18 inches

Deer Resistant

Yes