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Treedoc, Thanks, as well. I'm learning a lot.
So you don't believe that the production of those sugars that cause the "red" are affected by by the trauma of both transplanting (especially on such a large speciman) and being in the shade. Anecdotally, it seems as if Burning Bushes in the shade are not nearly as red as those in full sun. And, I suspect the red fall color is determined by similar "anthocyanins."
And it seems other plants with the red pigments (heucheras, barberries..) in their leaves are not as red (or maroon) when they're in a shaded area.
Thanks again.
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