Sunflower Seeds

Add height and colour to your garden with D.T. Brown’s sunflower seeds. Sunflowers are a classic summer favourite, with cheerful flowers that are magnets for pollinators like bees and butterflies. Our range includes top-quality varieties like Giant Russian, a much-loved heirloom known for its towering height and large, golden heads, and Suntastic F1, a compact, multi-flowering type that’s better suited for pots, smaller spaces, or even sunny windowsills. These sunflowers are excellent for cutting, giving you a chance to enjoy their beauty both indoors and out.

For more summer colour, explore our full selection of flower seeds including Cosmos seeds, Zinnia seeds, and Marigold seeds, amongst many more. Together, they’ll help you create a space full of bright, long-lasting flowers that give you every reason to enjoy time in the garden this summer.

Browse our sunflower seeds below and grow top-quality blooms this summer with D.T. Brown.

When to Sow Sunflower Seeds

Sunflower seeds can be sown indoors from late March to May, with compact varieties being able to be sown up to early June. Early sowing indoors helps give taller varieties like Giant Russian a head start, giving them enough time to develop their characteristic height before flowering. If sowing outdoors, wait until the soil has warmed up and there is no risk of frost. For compact varieties like Suntastic F1, sowing later in spring is often more suitable, as they can establish more quickly.

How to Grow Sunflowers

To grow sunflowers, sow seeds in pots with good-quality seed compost and place them in a warm, bright location. Water gently to keep the compost moist but not waterlogged. Once seedlings appear, transplant taller varieties into larger pots or directly into the ground, spacing them about 30-45cm (12-18in) apart in a sunny spot with well-drained soil. Support taller sunflowers with canes as they grow, and feed regularly with a general-purpose fertiliser for bigger, brighter blooms. Water consistently during dry spells for best results.

Buy Sunflower Seeds Today

At D.T. Brown, we stock sunflower seeds that can fill your garden with bright yellow flowers and pollinators galore this summer. Every one of our seeds is chosen for its exceptional germination rates and ease of growth.

Order your sunflower seeds today with D.T. Brown, and enjoy a 100% satisfaction guarantee. Shop now for delivery from just £2.45 on seed-only orders, and start growing beautiful, pollinator-friendly sunflowers in your garden.