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Old 07-01-2019, 09:35 AM
 
Location: Sydney, Australia
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I wonder how southern/northernmost can you be to experience seasonal variation in vegetation.

To note, I am not counting tropical savanna climates where the vegetation (or the grassland) goes brown in the dry season and then lush green in the wet season. My focus is more on vegetation that have colour variation in their foliage, such as deciduous plants. I want to know how pronounced their seasonal variation can be in proximity to the equator.
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Old 07-01-2019, 10:00 AM
 
Location: Norman, OK
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Houston, TX had some fall foliage when I was there around December 17, 2017, so that's probably about the southern limit in North America (30°N). There may be fall foliage that occurs at lower latitudes in China.
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Old 07-01-2019, 12:40 PM
 
Location: Nyon, Switzerland
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Johannesburg, South Africa (at 26 degrees south and 1750 m above sea level) has lots of vegetation similar to the 4-season temperate climates (decideous trees).
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Old 07-03-2019, 12:40 AM
 
Location: Sydney, Australia
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Quote:
Originally Posted by srfoskey View Post
Houston, TX had some fall foliage when I was there around December 17, 2017, so that's probably about the southern limit in North America (30°N). There may be fall foliage that occurs at lower latitudes in China.
I would expect Houston to have fall foliage and seasonal variation in their vegetation as its winters are similar to ours and are relatively cool, especially in contrast to their summers. Houston is also susceptible to polar outbreaks and have had snowfall in rare occasions recently.

In the US, I'm thinking Tampa and Orlando. I wonder if you can grow deciduous plants there (like Sweet Gums and Crepe Myrtles) and if shrubs like Nandina would display autumn foliage in such places.
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Old 07-03-2019, 03:08 AM
 
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Places at around 34'N in Japan and the US East Coast area I think.
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Old 07-07-2019, 11:11 AM
 
Location: Brighton/London
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Somewhere on the east coast of China with ridiculously lousy winters for their latitude
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Old 07-07-2019, 01:30 PM
 
Location: Trewartha, Dc
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I will bet you that a highland can be found in the tropics that experiences monsoons bringing air masses from different directions and creating sufficient cooling for fall foliage. To find it, I would check wind maps between 10 and 20 degrees north or south latitude for areas with prevailing winds that change north to south, and then look for elevated areas along there with a Köppen cxa designation.
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Old 07-07-2019, 02:43 PM
 
Location: Brooklyn Center, MN
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Probably the far northern part of Florida. Been there plenty of times in winter and some trees lose their leaves in late autumn.







I took this photo on January 1, 2012 in Live Oak, Florida.
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Old 07-08-2019, 12:27 PM
 
1,771 posts, read 617,219 times
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Originally Posted by Ethereal View Post
I would expect Houston to have fall foliage and seasonal variation in their vegetation as its winters are similar to ours and are relatively cool, especially in contrast to their summers. Houston is also susceptible to polar outbreaks and have had snowfall in rare occasions recently.

In the US, I'm thinking Tampa and Orlando. I wonder if you can grow deciduous plants there (like Sweet Gums and Crepe Myrtles) and if shrubs like Nandina would display autumn foliage in such places.
South of Tampa here. Yes, I have a ridiculously annoying crepe myrtle that hangs out over my driveway. My last house had several oaks and a sycamore.

On this coast of FL, the dividing line really happens as you drive south on I-75 through Sarasota County. Once you get there, you see nothing but pines and palmettos.
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Old 07-09-2019, 05:06 PM
 
Location: Brighton/London
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maybe Nanning? Its at 22N and has sub 20C in jan and feb https://en.wikipedia.org/wiki/Nanning#Climate
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