This is the choice to go for if it is height and impact you are looking for. These make a fantastic screen for a shed or wall. Grow with support to achieve the tallest plants. Don’t forget that the buds, petals and seeds can be eaten. They will also attract beneficial insects such as bees. Height to 300cm (10 feet) Annual Price for 20 seeds.
Sunflowers are an easy annual to grow. Sow the seeds indoors in February or March in individual pots or modules, about 1cm deep. They need about 20°C warmth. Germination takes 1-2 weeks. They can be sown later in April in pots or in situ (where they are to grow & flower) in a milder area.