Helianthus Tall Single The perfect symbol of summer, the Sunflower is one of the most widely grown annual flowers. Very popular with children, sunflowers are ridiculously easy to grow and will flower in 7-12 weeks from seed. Bees and butterflies love them and birds will flock to old flowerheads once they fill with seeds in late summer/autumn. Ideal for growing in the garden or in pots and containers. and fabulous for cutflowers. Wherever you grow them, protect well from snails and slugs as they absolutely love the leaves and stems. Germination takes 10-14 days. For outdoor sowings from April onwards, sow 1.5 cm deep directly into well raked, moist soil and protect well from slugs and snails. Growing: Grow the seedlings on repotting as necessary and plant out when they are about 30cm tall in a sunny spot price is for 20 seeds