Helianthus Sonja

Helianthus ‘Sonja’ is a stunner, with golden-orange petals and dark chocolate brown centres. Growing to about 1m tall, the blooms are perfectly positioned to be admired without craning your neck — ideal beside a path or in patio containers.

🌸 Flowering: July to September

📏 Height: to 100cm

🌿Annual

SOW: start indoors in February or March in individual pots or modules, about 1cm deep, at around 20°C. Germination takes 1–2 weeks. In milder areas, you can also sow outdoors in April, either in pots or direct where they’re to flower.

GROW: harden off and plant out once frosts have passed, spacing them 40–50cm apart. Keep well watered and choose a sunny, open spot. Stake tall varieties, especially if you're using them as a screen or windbreak.

ENJOY: compact and striking, these sunflowers fit beautifully in smaller spaces, adding vibrant colour where you can easily enjoy them up close.