The London Plane of Landbohojskolens Have

Six metres seventy-one round, and the university's own history of this garden does not mention it. That history has a great deal to say about the zelkovas, the golden weeping ash and the collections of ash and chestnut. The plane behind the old auditorium VII goes unnamed. The Danish tree register measured it in 2011: a single stem, 6.71 metres in circumference, 25.7 metres tall, healthy. The zelkovas on the other side of the garden look wider, but that figure is four trunks fused into one crown. This is one stem. Landbohojskolens Have was inaugurated in 1858 as the teaching garden of the Royal Veterinary and Agricultural University, and the university says plainly that some of its trees have stood here for more than 150 years. It does not say this is one of them, and nobody has dated the plane, so we do not. If you know when it went in, tell us. The species itself is an accident of gardening. The London plane is a hybrid of an oriental plane and an American one, two trees an ocean apart that met in a European garden in the seventeenth century, and it turned out to shrug off city air better than either parent. Copenhagen, Paris and London all planted it for that. This one got a campus lawn instead of a boulevard, and grew accordingly.