Photo: Liam Maguire (CC BY)
The Ankerwycke Yew
Photo: Liam Maguire (CC BY)See it at full size

The Ankerwycke Yew

United KingdomRunnymedeRunnymede and Ankerwycke

Years old2000-2500
Girth7.98 m
SpeciesEuropean Yew

Two national bodies that both know their trees cannot agree on this one's age to within five hundred years. The Woodland Trust says approximately 2,000. The National Trust says as much as 2,500. Neither can settle it, because an old yew rots from the middle outwards and takes its rings with it. What can be measured is the trunk: 7.98 metres round, and taken low, at thirty centimetres off the ground, because a base this hollowed and buttressed offers no clean line higher up. Either figure leaves it standing here in June 1215, when King John sealed Magna Carta somewhere on this stretch of the Thames. Tradition puts the sealing under this tree, and some historians do argue the ceremony happened on this bank rather than in the meadow opposite. That is an argument, not a record. The same applies to the story that Henry VIII courted Anne Boleyn beneath it in the 1530s. Said to, thought to, never written down at the time. The certainties are quieter. It grows in the grounds of St Mary's Priory, a ruined Benedictine house on open National Trust land, reached on foot from Magna Carta Lane. The 2020 survey recorded holes, water pockets, decaying wood in the crown and a trunk hollow enough to step into, all of it ordinary for a yew of this age. Visitors still tie strips of cloth to the boards beside it, which is an old habit for an old tree.

The tree's yearIn fruit
now JanFebMarAprMayJunJulAugSepOctNovDec

In fruit

September to November: red arils on female trees, the only part that is not poisonous

The line is our estimate of how much there is to see, not a measurement. Typical for this species where this tree stands; exact weeks shift with the year.

Ankerwycke, in the grounds of the ruined St Mary's Priory, off Magna Carta Lane, near Wraysbury, Surrey/Berkshire border, opposite Runnymede across the ThamesYou can recognise it by its hollow, buttressed trunk, 7.98 metres round, and the strips of cloth visitors tie to the boards beside it. It stands in the ruined St Mary's Priory at Ankerwycke.

Free. On National Trust open parkland at Runnymede and Ankerwycke, reached via a public path/circular walk from Magna Carta Lane; no ticket or permission needed to see the tree. Parking on site is limited and may be chargeable for non-members; the tree itself is not behind any gate.

Wraysbury railway station (Windsor & Eton Riverside to London Waterloo line) is the nearest, about 0.8 miles / a 20-30 minute walk via the riverside path (routes are indirect, following the Thames and field paths rather than a straight line); the infrequent 305 bus from Wraysbury station stops at Magna Carta Lane, closer still.

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