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Old 10-27-2008, 08:31 AM
 
Location: So. Dak.
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Tennessee, those pics are beautiful!!!

I really don't know why everything isn't bare here yet. We have had a few chilly mornings and definitely have had the wind to blow leaves off. We had an exceptionally late springtime so maybe we're just blessed with a late autumn.
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Old 10-27-2008, 09:38 AM
 
Location: Indiana Uplands
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The trees are well past peak around here. You still see some good color on a lot of the oak trees.
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Old 10-27-2008, 10:38 AM
Status: "Happy 2024" (set 12 days ago)
 
Location: Texas
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Some of our trees have turned a vivid red, but most are still green. I expect to see some more fall color in the next week or so because we have had some lows in the 40's. It's my understanding that you usually have to get to the 40's to begin to see much color change.
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Old 10-27-2008, 12:41 PM
 
Location: Indiana Uplands
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Quote:
Originally Posted by kaykay View Post
Some of our trees have turned a vivid red, but most are still green. I expect to see some more fall color in the next week or so because we have had some lows in the 40's. It's my understanding that you usually have to get to the 40's to begin to see much color change.
We had lows in the 40s in August around here
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Old 10-27-2008, 03:36 PM
 
Location: Perth, Western Australia
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Quote:
Originally Posted by kaykay View Post
Some of our trees have turned a vivid red, but most are still green. I expect to see some more fall color in the next week or so because we have had some lows in the 40's. It's my understanding that you usually have to get to the 40's to begin to see much color change.
Roughly when you start getting 45 F or below is what it seems like here.
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Old 10-27-2008, 04:06 PM
 
Location: So. Dak.
13,495 posts, read 37,473,644 times
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Quote:
Originally Posted by kaykay View Post
Some of our trees have turned a vivid red, but most are still green. I expect to see some more fall color in the next week or so because we have had some lows in the 40's. It's my understanding that you usually have to get to the 40's to begin to see much color change.
I'm surprised we have any green left then cause we've been below the 40s a lot. I was thinking it had something to do with the amount of sunlight and the photosynthesis thing, but can't remember exactly how that goes.
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Old 10-27-2008, 04:43 PM
 
Location: Perth, Western Australia
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Originally Posted by Jammie View Post
I'm surprised we have any green left then cause we've been below the 40s a lot. I was thinking it had something to do with the amount of sunlight and the photosynthesis thing, but can't remember exactly how that goes.
Each tree species (and sometimes variety) reacts differently. We have a lot of "northern red oak" here and most of them still have some green in them. Also linden trees are still mostly green. They seem to need much harder frosts before they turn brown or fall off. That's another thing, some trees stay green until it's near 20 F and then they just turn brown and remain on the trees until the winds get strong enough.

Our neighbour has a weird, unusual variety of oak that is often green in early December when 90% of the trees are bare. Some years it's still green on Christmas. The leaves later turn brown and often stay on until sometime in January. It seems that for their oak to lose its green it has to get lows below 10 F for an extended period of time, the ground has to be rock hard for 2-3 weeks or we have to get at least one cold snap dropping us below 5 F for a morning low.

Ashes tend to colour up and drop the earliest, and they tend to start leafing out in mid to late spring. Other trees with similar leafing out, colouring and dropping times are the black walnut and hickory. Maples tend to leaf out early in spring and colour up and drop in mid-autumn (or in between the earliest and latest trees to colour and drop)
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Old 10-27-2008, 11:08 PM
 
Location: Northeast Tennessee
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Thanks. Yes, I really love it down there. If I was to ever move away from here, I would move down there.... if not there (upstate South Carolina), I would move to Raleigh or Wilmington, North Carolina.

Yes, good to hear some color is hanging on up there where you are.

Quote:
Originally Posted by Jammie View Post
Tennessee, those pics are beautiful!!!

I really don't know why everything isn't bare here yet. We have had a few chilly mornings and definitely have had the wind to blow leaves off. We had an exceptionally late springtime so maybe we're just blessed with a late autumn.
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Old 10-28-2008, 06:12 PM
 
Location: Singapore
3,341 posts, read 5,565,792 times
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I'd say 80% of the trees here have changed colors. There's very few that are still green or mostly green. Then there's the trees that are already bare.

As for the color of the leaves, they are brighter and more colorful than usual. Maybe the current sunny weather has something to do with that. But I remember in November 2006, the leaves were very bright and it wasn't sunny at all that month. So...
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Old 10-28-2008, 06:47 PM
 
Location: Covington County, Alabama
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Most of the trees around me are citrus. They stay green year round unless we get the hard freeze that happens every third or fourth year. Then they look like a flame thrower hit them in a few days.
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