Greenwich Park’s assistant manager Stuart Goldworthy ran a two-hour walk about trees today – so in theory, I can now tell the difference between the Sessile Oak and the English or Common Oak (the sessile ones have a stalk on their leaves – the English leaves don’t). It was fascinating, although it’s a pretty small beginning with more than 4000 trees in more than 400 types. About 25 people went along – including Elaine Warrell from the park’s Friends and the Royal Parks Community Ecologist Nigel Reeve, who had a lot to say about ladybirds, moths and bats.

Below: the two oak leaves & Stuart compares cedars.