David Day, chair of governors at the school, which took over custody of the tree in 2012, organised an event to protect the historical tree.
“Because of the response people get from it and the commitment people have towards this tree, it really does pull you in,” he told BBC Look East.
“I’m very enthusiastic and determined to make sure we do the right thing for the tree and preserve it for future generations.”
Believed to have been planted when it was 10 years old in 1674, Mr Day said the tree had a strong heritage and a “direct emotional impact on people”.
