of course, it is going to depend on the strain. no one can tell you for sure without knowing the strain. still the best way is to go to radio shack and get an $11 dollar mini microscope. when about 50% of the hairs have turned red, start looking through the mic at the trikes (crystals) on the plant. when they have turned from clear to about 50/50 cloudy/amber, your plant is ready. best wishes
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