• A few weeks: The trichomes will begin to become milky in color.
• Couple more weeks: The trichomes will be completely milky at this time.
• Late flowering stages: From a milky color, the trichomes will turn brown or amber.
Note: The abovementioned timeline is relative thus, is not always true for all strains. The growth period of your plant will still depend on the kind of strain and the growing situations.
Other factors include:
• The plant will eventually cease producing crystals.
• The yellow fan leaves and lower leaves of the plants will start to fall off.
• The smell has reached its peak.
• The bud will no longer grow with the passing days.
Marijuana grown indoors can be harvested in about 7 to 12 weeks after flowering. Indica strains will be fully grown and ready for harvest in 7 to 9 weeks’ time. Sativas may take a little longer to mature. They usually reach full development in 12 weeks.
When you reach the third stage of floral maturity, it is safe to assume that trichomes are fully developed and plants would have reached its optimum weight.
Below are some guiding principles to help you evaluate the ideal harvest window for your particular strain.
• For heavy Indicas, the window of harvest is open when the trichomes are fully-formed but still clear. When smoked this will the user a body high with a lesser narcotic feel.
• For most hybrids, harvest can happen when the trichomes becomes fully-formed and turned cloudy.