Quote Originally Posted by low_rdr
When white widow is grown to maturity, and not harvested early the entire thing is just packed with CBD - If your harvesting just as the trichs are changing, you'll get the effect your looking for. Your also using Nirvana, I'm using Seedsman - They are different genetics, and my pheno might have more indica attributes than yours, I'm putting one in flower in about a month, and I'll put some pics up of her. I flower them for a full 14-15 weeks, with the last two weeks in complete darkness and give it about 2200 PPM cO2 in the final stretch. My hairs are 100% brown (not red) when I harvest, and my trichs are mostly amber. - There are only a few nirvana strains I'm a fan of, bubblicious is one of those.

Also, if you look up images of seedsman white widow vs nirvana white widow, you can definitely see a genetic difference. If this is your first experience with WW, take it easy at first, one good bong rip and give it a few minutes before you go again, this is one of those strains that can really get your head spinning if you don't take it easy, of course, different pheno than mine, so might be a different effect there as well.
When trichomes start to turn amber; The thc is decaying. Yes, you will get a more sleepy or couchlock effect when the trichomes are predominatly amber. So,it is best to harvest this type of genetics when the trichomes are predominantly cloudy. Whebn clear trichomes are a vessel for thc. It is not until they are cloudy they actually contain the thc you are expecting in order to experience the potency you are looking for.

I agree that the earlier you harvet form clear trichomes, to partly cloudy trichomes to clear, cloudy, and amber trichomes; the more you lose the "up" high and gravitate towards sleepy time. If you wait until all trichomes or majority are amber; you have passed the ultimate potency level and will get sleepy instead of energetic.

You can buy a nice hand held pocket magnifier for about $10.00 at radio shak, or online somewhere, to look at your trichomes and determine the % of clear cloudy or ambner trichomes. This is the only way to truly judge as to when you need to flush, and harvest. There is no exact measurement in weeks to determine when to harvest.

Funny. I might be wrong, but I am pretty sure I have read low rdr say; "I harvest when trichs are mostly cloudy", And here he says, "I harvest when trichs are mostly amber". Perhaps he is making a different choice depending on strain. I always harvest when trichomes are mostly cloudy; Giving you the most potent and healthy uplifting type effect that any genetics can give.


One final note. co2 should never be applied over about 1500 ppm. And; Especially not in the final 2 weeks when you are trying to flush minerals, toxins, etc... from your plants. Plants overdosed with co2 can be harmed just as bad as if you dose them with nutrients at too high a ppm level regardless of time in grow. So; In theory; You would not fertilize or apply co2 after you start your flush period.

Hope this helps.