Jun 25-Oct 4. The full life story of one oak tree, on display in the gardens. In January 2010, an oak tree, growing in woodland on the Blenheim estate, was felled for its timber. It was donated to the Sylva Foundation by the Palace as the focus for an education project, aiming to bring people closer to the growing of trees for wood. The OneOak tree is now one of the most scientifically studied trees in Britain. It has also inspired artists, craftspeople, film makers and musicians. Its timber is being used to make a huge array of wooden products: beams in buildings, the hull of a ship and fine furniture, plus everyday items and energy to heat homes. The legendary chef Raymond Blanc has used oak wood chippings from the tree to smoke salmon at Le Manoir. Visitors can see drawings, prints and photographs, together with information and films about the trees history. 10.30am-5pm. £11.50, concession £8.50, child £6, family £30.