Sunflowers are incredibly easy to grow. They can grow to over 6ft tall, with big flower heads in bright yellow. They attract bees and birds, which devour the large seeds.
You need to sow the seeds in average to fertile soil under a hot sun.
Direct sowing
Sow seed 5cm / 2inches deep and spaced 45cm /18inches if you are placing them in the garden. Water the seeds regularly and when growing tall forms, feed sparingly with a liquid fertiliser when 2ft high.
Starting in pots
Use 7.5cm / 3inches pots and a good sowing compost. Sow one seed 2.5mm / 1inch deep per pot. Water and cover with either polythene or bubble plastic to retain the heat, or place pots on a heated bench or in a propagator with the temperature set at 13C / 55F You will need to remove the covers when the leaves appear. Plant seedlings outside when they are large enough to be handled, and the roots are well developed. Add garden compost to the soil if it is infertile.
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