Cosmos bipinnatus 'Sonata Mixed' Seeds

A Symphony of Colour in a Compact Package

Cosmos bipinnatus 'Sonata Mixed' is a beautifully compact, bushy variety that delivers all the charm of classic cosmos in a more manageable size — perfect for smaller gardens, borders, and containers. The blooms are large and showy relative to the plant size, appearing in a gorgeous mix of white, soft pink, rose, and crimson, each with a cheerful golden-yellow centre. Feathery, fine-cut foliage adds to the airy, cottage-garden feel. Sonata Mixed is an RHS Award of Garden Merit winner and one of the most reliable and free-flowering cosmos varieties available.

Why Gardeners Love It

• 🌸 Compact, bushy habit — typically 45–60 cm tall, ideal for smaller spaces, borders, and pots
• 🌟 Large, showy blooms in a beautiful mix — white, soft pink, rose, and crimson with golden-yellow centres
• 🌿 Strong, sturdy stems — hold their shape beautifully in the garden and in the vase without flopping or drooping
• ✂️ Good cut flower — cheerful and long-lasting in arrangements, with stems that stay upright and elegant
• 🐝 Excellent for bees and butterflies — a magnet for pollinators throughout summer and autumn
• 🌱 Easy to grow from seed — fast-growing, reliable, and free-flowering from summer through to autumn

Growing Tips for New Zealand

Sow indoors 4–6 weeks before the last frost, or direct sow in spring once soil has warmed. Sow seeds on the surface of moist seed-raising mix and cover lightly. Transplant seedlings to 25–30 cm apart in a sunny, open position with well-drained soil. Cosmos thrives in poor to average soils — avoid overfeeding which encourages lush foliage at the expense of flowers. Deadhead regularly to extend flowering from summer right through to autumn. Performs beautifully throughout NZ in any warm, sunny position.

What's in the Packet

Each packet contains 8 seeds of Cosmos bipinnatus 'Sonata Mixed'.