I head to the mountains of N Georgia every fall for a couple of weeks and I do see some variation on the timing of leaf color. I don't know what the primary cause is, but I believe temp has some effect as does the amount of rainfall. Most of the folks up there say an early frost and and adequate rainfall accentuates leaf coloration and timing. This year it was later than normal and this weekend it was just beginning to brighten up. Last weekend the only color was the sourwood and most of the poplars where still green while this morning they were just getting the rich yellow they are known for. The Hickories are at there peak now and the maples are just beginning to color. The oaks are still green. I would guess peak for the lower elevations of N GA would be later this week.
Down here in South GA what color we get is primarily the red maples in the swamps and the turkey oaks on the sand hills and it is usually a drawn out process with most color in late Nov and early Dec. The Yellow poplars down here normally just go from green to brown and just drop. Everything is still green now. Edward Frank wrote: > Steve, > > I haven't seen the same thing here in PA. I don't think the dates of color > are being pushed back in this region. I have been trying to find a listing > of dates of fall coloration on the internet for periods in the past for > comparison purposes, but have not had much luck. In general the process > really seems according to the literature to be triggered by changes in > day-length and not by temperature changes. Therefore since the length of > days have not changed as a result of global warming, the dates of color > change should not have changed. I believe there is a difference in the dates > of color change and leaf drop from planted trees of a more northern origin is > earlier than those of local origin. I don't know what to say about your > experiences with the later coloration in your area. > > Ed > > Join me in the Eastern Native Tree Society at http://www.nativetreesociety.org > and in the Primal Forests - Ancient Trees Community at: > http://primalforests.ning.com/ > > ----- Original Message ----- > From: Steve G > To: ENTSTrees > Sent: Sunday, October 26, 2008 11:21 PM > Subject: [ENTS] Fall colors and leaf drop > > > > ENTS > > Here in N Ohio, on October 26th, most oaks are still green, and many > other trees are just beginning to show fall colors and leaf drop. > Twenty years ago, tupelos would begin to color up in August; now it's > in mid October. It seems "fall" has been pushed back at least a month > from what it used to be. Any comments or observations? > > Steve --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org You are subscribed to the Google Groups "ENTSTrees" group. To post to this group, send email to [email protected] To unsubscribe send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/entstrees?hl=en -~----------~----~----~----~------~----~------~--~---
