Why havent these pistils turned orange/red?

Well this is the last of 10 of lowryder#2xAK47 plants....the rest were harvested weeks ago!!...but this one just wont mature or it seems. About 80-90% of the pistils are still white....this plant has definitly been slow to mature throughout, although looking through a 60x-100x microscope shows me the trichomes are more than 50% amber, a lot cloudy and a few still somewhat clear. Ive been giving this plant all the time in the world, but it even seems to be drinking water slower.

Time to harvest?

i just chopped down one of mine that was doing the same exact thing. i got tired of waiting and chopped with the other one i had left that started like dieing in the middle i dunno what i did to it. looks like alot of your pistals are still white though.

hmm I've never had this problem personally, but when it is harvest time I flush the nutrients completely out, then it takes what it needs from the rest of the plant. I grow hydro, so its easy for me you know what to do if your in dirt. a good reason for the slow would be stress. has that plant had any stress early on in its life. that will stunt flowering as well as immediate growth. if your looking at 50 percent amber trichs I would be tempted to harvest now. the clear trichs will cloud up during your cure.

i having the same problem the plant that snapped at the bottom is taking very long to mature and i have the same plants i think its the plant if it stressed during veg at some point it slows it down alot but.. my plant that snapped at the bottom also yeilding the most so im patiently waiting. im going to give them a least a week more

I would be patient and wait ...