Grape Ape didn't turn purple

[roasthawg]

Figured I'd put this in the infirmary... Last round of Grape Ape from dark heart nursery didn't turn purple at all. Plants were healthy, temps were between 82 at the max and 75 at the low with an average of 78. Co2 was at 1000ppm throughout. Ran this cut many other times always getting dark purple buds.... Only thing I did different was turn the co2 up from 700 to 1000. Anyone else ever have this issue?

 

[troutman]

Lower temps during the last month of flowering at night really helps in bringing out the color is some strains.

If you've grown Indica type plants outdoors you will probably have seen this at one time or another by Fall due to the cold mornings.

 

[roasthawg]

you buy new each round ? interesting.

These were actually cuts off cuts. Forgot to mention that the GSC in the room went completely purple.

 

[king oscar]

This is one that was on the fence for me. Plants closer to the ac were straight purple