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.
Unless you are wanting to start a breeding program, the male plants will just waste time and space. Usually, male autoflower marijuana plants will show themselves within 15 â 20 days, or roughly a week earlier than female plants. Autoflower marijuana seeds grow very well in soil, soil-less (hempy), or hydro. The aroma is sweet and incense like, and the dense buds have little stem waste.