According to Guinness World Records, the tallest sunflower on record was grown in 2014 by Hans-Peter Schiffer in Karst, Nordrhein Westfalen, Germany. It measured 9.17 m (30 ft, 1 in). Sudbury ...
That title belongs to Hans-Peter Schiffer in Karst, Nordrhein Westfalen, Germany. His sunflower reached 30ft 1in and needed special scaffolding around it. The current record for the tallest ...