Giant Yellow produces enormous sunflowers that children love to grow. The flowers are like very large daisies with brightly coloured petals.
Sow the seed thinly direct into finely raked, moist, warm, weed free soil where plants are to flower, 13mm deep. Germination takes 7-21 days. As the seedlings grow thin in stages to achieve a final spacing of 30-45cm. Support the plants as they develop. For early blooms sow indoors in April, carefully acclimatise plants to outside conditions and plant out mid to late May. Grow in a well manured soil in a sunny position and keep moist.