Plant directly into the ground
The RHS suggests that most sunflower varieties can in fact be planted directly into the soil if the weather is mild.
Choose a bright sunny spot with well-drained soil to bury your seeds, and be sure to weed the area thoroughly beforehand.
Rake the soil to a fine crumbly texture and make some holes around 12mm deep, with a 10cm gap between seeds.
Next, place the seeds into the drill holes and cover them with soil after a gentle watering.
Use a plastic bottle to act as an anti-slug and snail covering while the young seedlings grow.
As your sunflower begins to grow taller, it is crucial to use a cane and string to tie the stem loosely for a little extra support.
Watch your sunflowers grow and grow and grow until August when they will flower.