"What exactly are the effects of cooler weather on the plant?"
Cooler weather helps the plant develope Trichomes

You mentioned "late trichomes", sometimes that can be caused by the type of strain you have(mostly means the strain is weak), it's really nothing serious..just keep growing because some plants start slower than others and some plants develope Trich late and then it BLOOMS....so you might just have a late bloomer...

Darkness & Cooler weather helps "thc".....Just don't freeze your plant(s)
Subjekt Reviewed by Subjekt on . Cold Weather Effects? Quick question, wanted to separate it from my other thread, but i was recently questioning factors that might cause my plants to grow/develop trichomes and such late...anywayz i thought of this, where i'm growin is winter out here , windows open for exhaust obviously it gets id say coolest 50 degrees in the room, theres a space heater in the room i didnt use at first cuz they use alot of electricity. I decided id use it during the time lights are off cuz thats when it really needs it....i Rating: 5