conditions there were not suitable for expansion. Research was undertaken by Jonathon Jones, MD of Trading and botanist, on-site and in every tea region of the world with the support of a Nuffield Scholarship. Over 20,000 additional tea bushes are planted annually between April and October. The Tregothnan microclimate is the result of the 60 feet (18 metre) deep sea water creek that bisects the tea gardens, six miles inland and away from salt wind exposure. Global media interest in the project to create the most British tea in history has helped develop the charity open weekend of the gardens into possibly the largest of its kind in the world. There are custom-made bee hives among Leptospermum "Manuka bushes" producing Manuka honey with measurable methylglyoxal content. References External links Country houses in Cornwall Gardens in Cornwall Grade I listed buildings in Cornwall Grade I listed houses Grade II* listed parks and gardens in Cornwall Lewis Vulliamy buildings Boscawen family