"How to know when to harvest"
The 40:60 Rule
Sativa doesn't tend to have as many visible trichomes as indica. Depending on where you're located, they might not have been flowering all that long. Posting a picture or two can help if you feel that there is a problem.
The 40:60 Rule
i think i have a problem...i have had a sativa in the ground since april...i have flowers..a lot...they were bag seeds...one plant has purple flowers...the problem is...i don/t see any trichomes..i have a 100 x 60 scope from rs
Sativa doesn't tend to have as many visible trichomes as indica. Depending on where you're located, they might not have been flowering all that long. Posting a picture or two can help if you feel that there is a problem.