Ash before oak – we are in for a soak
Oak before ash we are in for a splash
In reality oak pretty much always comes into leaf before ash. In the last fifty years oak has always leafed before ash. It has not always been this way – in the 18th century when it was less mild ash did often flower before oak – thus the quote.
Climate change has changed all of this – usually oak leafs in late March-May which is about two weeks earlier than 30 years ago. Ash usually leafs during April and May, about 7-10 days earlier than 30 years ago.
In my garden I have 5 large oak trees and a couple of ash trees. 3 of the 5 five oaks are now in leaf but none of the ashes are.
Green splashes on the oak trees.
Pedunculate (or English oak) in leaf and in flower
Not often seen – the flowers of the Pedunculate oak
The two oaks in my garden which haven’t come into leaf yet are clearly a different genetic stain from those which have.
Here are the Sessile Oaks of the Teign Valley at Fingle Bridge – a few hundred metres higher in altitude and not yet anywhere near leafing – spring is a long drawn out process …..
A Dartmoor blog 