Click on a thumbnail picture below to see the full size version. 3 Entries. Saturday, September 14 View Page It took me a while, 30 years, but I just got the USA tall sunflower record with my 26'5" SF. I deprived them of some sunlight around the tops using plastic tree tubes. I'm not sure that was the trick because I've had plants very close to the same height without them. The Monroe County Department of weights and measures came out and did the official measurement.   Saturday, September 14 View Page attached to the tube   Saturday, September 14 View Page Official letter