BTFL have planted many, many Oak trees throughout the City in the last 10 years. The moment Oak trees ‘burst’ their buds and come into leaf is considered by many to be the real start of Spring. The Woodland Trust (whose wonderful picture this is) are working with Nature’s Calendar to record this date all over the country (the date varies dependent on where you live). Have a look in your local park and see if you can spot the date when our wonderful Oak trees start coming into leaf.
There is an interesting fact sheet available via http://www.woodlandtru.st/p7LXC