Monty Don’s giant sunflower trial (part one)

Which sunflower variety produces the biggest flowers? Monty Don puts four to the test.

Monty Don chooses four sunflower varieties that claim to grow very tall – Helianthus annuus ‘Giant Yellow’, ‘Kong’, ‘Pike’s Peak’ and ‘Mongolian Giant’ to see which one reaches the greatest heights. He also shows you how to get the seeds off to a good start in spring.

Watch more videos in this sequence:

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