Helianthus ‘Red Sun’ is a vibrant sunflower with deep red petals surrounding dark centres, held high on tall, sturdy stems. Bold and dramatic, these striking blooms bring real wow-factor to the garden. If you can bear to cut them, they last beautifully in a vase.
🌸 Flowering: July to September
📏 Height: to 150cm
🌿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: bold and dramatic, these sunflowers light up your garden with their rich red hues. Perfect for cutting — they’ll brighten any vase and keep their charm for days.
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