Is there a way to speed up the trichomes turning amber?

@ORGANOMAN Here are the pictures I just took: https://imgur.com/a/u2qlNC9

Not really, cooler nighttime temps, if you're very close to the end, adding blue light or uvb light, or reducing the amount of light received to 11 or 10 hours 🌱👍

@ORGANOMAN Thanks, I will post some close ups when I get home.

Some strains will never have amber trichomes and waiting for them to turn amber can lead to dreadfully over matured flowers with degraded THC levels. Some strains will have 50% amber trichomes after 4 weeks of flowering and will, obviously, be under-developed flowers. Judging maturity by trichome colour alone can be misleading. Judging maturity by pistil colour will give a true indication of the plants biological maturity, including cannabinoid quality. I prefer to base my harvest decisions on pistil colour - when about 95% of pistils the are brown, this indicates that the plant is biologically at its peak in THC quality and quantity and this is the best harvest time in my opinion. Waiting until all the pistils are brown will result in flowers that have lowered and degraded THC levels and quality and with flowers with increased CBD and CBN levels, two cannabinoids which are non-psychoactive, but produce a very stupefying and couch locking effect. I prefer to get "high" and not be "zombiefied" and unable to be be motivated to do anything and/or falling asleep as a result of inhaling. If your plants' pistils are 95% + browned off, your plant can be harvested without worrying about any protracted maturation. If it is taking "forever" to develop any amber trichomes, this indicates to me that your plants metabolism has slowed considerably, meaning it is nearing death and the slowed metabolism is the cause of the THC breaking down into CBD and CBN, as the plant can not replace the THC faster than it is being broken down into both CBD and CBN. Although there are no clear close up pictures in your diary, from what I could see, your Northern Lights auto looks to me as being more than ready to harvest, as indicated by the nearly 100% dead leaves and the yellowing of nearly all the "bud leaves" too. Hope this helps,........... Organoman.

Only Patience...