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Re: Warm-climate autumns

> > Do the following plants drop their leaves with the onset of 
> > cooler weather? Do they change color (reds, yellows)? 
> >  
> > poplars/cottonwoods (Populus) [...] 
> Yes, they do. 
> Populus: yellow to orange or red, sometimes with blackish spots. [...] 
Over here the poplars become yellow -- but there is frost every winter, so 
this doesn't count. In a climate without pronounced seasons plants have 
little reason to drop all their leaves at once, if they aren't ill. 

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