Hello my friend
The best way to judge the maturity of plants is to look at the resin glands, also called trichomes. Using a microscope ideally with 100x magnification, you can easily determine the condition of the resin glands and avoid having to guess. Trichomes go through 3 different stages:
1. TRANSPARENT
Transparent trichomes only contain precursor cannabinoids that are not psychoactive. Harvesting at this stage will not give you a very powerful product
2. MILKY
Milky resin glands contain fully ripe THC. To get buds as powerful as possible, you need to get as close as possible to 100% milky trichomes. Note that it is impossible to obtain 100% milky trichomes, as new resin glands are continuously produced. Likewise, even after harvest, the trichomes will continue to develop.
3. AMBER
Amber colored resin glands are a sign that THC has been converted to CBN, a degraded form of THC. This means that your product has lost much of its potency. CBN is not desirable in any crop, as its effects are more narcotic than a true elevation
Me personally I like harvested ais around 15 to 30% amber but that is just a preference 😉
Good luck for your grow bro 👍 may the force be with you 💪