Does Temperature Turn Plants Purple??

doughper

Well-Known Member
Well, i dunno about cannabis, but consider the following:
Hydrangeas change colors depending on the acidic content of the soil. The star-shaped flower clusters take a blue hue in an acidic medium i.e 5.0 to 5.5 pH and turn pink in alkaline soil with a pH range of 6.5 to 7.
 
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