England, who has lived near Stoke Park in Bristol all his life, has also noticed fruit ripening much earlier than normal.
He remembers picking blackberries as a child at the end of the school holidays in August and September, but this year he was out picking in June.
However, some berries are also suffering in the drought. England said rowan berries should be double their current size by now, but many have shrivelled in the dry conditions.
He fears that could have consequences for migratory birds such as fieldfares and redwings, which rely on autumn berries as a food source when they arrive in the UK for winter.
If they’re “ripening too quick” and disappearing before the birds arrive it could be a “big problem”, he said.
He has also noticed trees dropping their leaves much earlier than usual due to the dry weather.
“They are going into survival mode,” he added.