By Bobangles
Oxfordshire,
United Kingdom 
My hydrangaes are going green,why?
13 Sep, 2011
Answers
Agreed. Paler ones do tend to fade to green.
13 Sep, 2011
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Probably because the flowers are fading - autumn's here. Mine has red flowers, and they've faded to several shades paler.
13 Sep, 2011