Quote Originally Posted by Zandor
The pistils will change color when they die off and dry up. Either temperature or time will make that happen. The color of the pistils is not a fair or even a good judge when to harvest. You are not after the pistils they are just a part of the plant's sex system. You want to smoke the Trichomes because that is where you get the high from not the pistils.

Yes - Trichomes are the indicator for HARVEST time. But since the question was:

(all bold face below mine for ease of reading the info on point)

Quote Originally Posted by yung a
How do I know when my babies are done blooming? What are the things I need to look for please be specific I'm in the 8th week of blooming?
Pistil color change should not be used as the sole (or even the primary) indicator that harvest time has arrived, but it is an indicator that the blooming cycle is coming to an end.

This pistil stuff isn't my opinion... See the following references:

Quote Originally Posted by kindprincess
At the end of the flowering stage, examine your bud to see if it is ripe and ready for harvest. Here are some indicators to help you identify that it's harvest time; however, please note that not all of these indicators will appear on every strain.
â?¢ 50 percent to 70 percent of the pistils change color
â?¢ Plants stop producing crystals
â?¢ Plants stop producing resin
â?¢ The fan leaves and lower leaves have turned yellow and are starting to drop off
â?¢ The smell has reached a peak
â?¢ Bud mass has not increased in the past few days
And this, from http://www.marijuanapassion.com/foru...ING-AND-DRYING
Plants are harvested when the flowers are ripe. Generally, ripeness is defined as when the white pistils start to turn brown, orange, etc. and start to withdraw back into the false seed pod. The seed pods swell with resins usually reserved for seed production, and we have ripe sinse buds with red and golden hairs.
And this, from http://greenmanspage.com/guides/harvest.html
The pistils of the young flowers are bright white and turn reddish brown with age. The pistils and flowers develop from the bottom of the bud to the top. The older, lower pistils are the first to turn reddish brown. For most basic indicas this usually happens by the sixth week in the flowering cycle. It is about this time that the calyxes begin to swell.

Calyx swelling is a major indicator of peak maturity. The lowest, oldest calyxes swell first and the swelling works its way up to the highest, youngest flowers on each bud. At peak maturity about 90% of the calyxes will almost look seeded, they are so fat.

Three quarters to 90% of the pistils will have turned reddish brown as well. For a basic Indica this takes well into the seventh week of the flowering cycle.
And yes, time will cause changes to the pistils, just as time will cause the trichomes to change color. Pistils, buds, trichomes - They are all related, and develop relative to one another.

Pistil color change is an indication that the buds are ripe. When to harvest is thereafter decided based upon the trichomes.

Unless of course, you've had full trichome color change with pistils that are still completely white... I've never seen this myself, but I suppose it could happen in some strains/under some conditions??