Chemical Weathering. Chemical weathering takes place in almost all types of rocks. Smaller rocks are more susceptible, however, because they have a greater amount of surface area. Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces.
Autos generally are ready to harvest sooner than photoperiod. Most autos are ready to harvest 65-90 days after being sprouted from seed. Some super autos have been bred to grow very big and can take up to 100 days before harvest.
Depending on the type of weed youâre growing, the marijuana flowering stage can take anything from 6 weeks for a short flowering Auto strain, 7 â 10 weeks for Indica dominant strains and 10+ weeks for the Sativa dominant strains. The following guideline gives you an idea what to expect during flowering.