Its size is a result of it re-rooting itself. As the branches weigh down, they come in contact with the ground and eventually form roots, spreading it further.
Mr Collins said the property was bought in 1883, but gardening at the site was not started until 1891.
“It is a replica of [the nearby] Leonardslee Lakes & Gardens – but I’d say it is much prettier,” he said.
The rhododendron is expected to be in peak condition over the next few weeks.
