Sunflowers are grown for their blooms, so sunflowers not flowering is a big problem. There are many possible factors, so getting to the root of the problem may require some trial and error. However, solve the issue and you'll hopefully be rewarded with beautiful blooms and will be able to avoid the same problems next year.
Setting yourself up for success when you first plant your sunflower seeds is vital in ensuring blooms, though it is not a guarantee. 'Sunflowers are easy for beginners to grow and often germinate quickly as the temperatures increase in May,' says Chris Bonnett, founder of the online garden centre GardeningExpress. 'Sow directly outdoors around 2cm deep in a sunny location and be sure to support any taller varieties with sturdy stakes.'
