On Thu, 10 Apr 2014 07:29:05 +0100, Mike wrote:

That's interesting Dave because we have just spent the weekend in Kent
on a reunion and we remarked when we got back to the Isle of Wight, that
whereas their Daffs are starting to go over, as are some of ours, the
trees in Kent are far more advanced than ours in greening up.

Possibly different triggers between plants. I think some, like daffs,
work on temperature. They certainly they just stop if we get a cold
period as they are putting up leaves and flower spike. This year our
daffs first poked above ground level in January...

Trees off day length but that doesn't really work with your
observation, maybe trees won't start until the day is long enough but
rate of progression is temperature dependant?

--
Cheers
Dave.