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Cannabis Seed Cold Stratification

Cannabis Seeds Cold Stratification is the process of subjecting cannabis seeds to both cold and moist conditions. Cannabis Seeds of all types can become dormant and slip into a type of hibernation that help the seed live for decades.

In the wild, “dormancy” is usually overcome by the seed spending time in the ground through a winter period and having its hard seed coat softened up by frost and weathering action. By doing so the seed is undergoing a natural form of “cold stratification” or pretreatment. This cold moist period triggers the seed’s embryo; its growth and subsequent expansion eventually break through the softened seed coat in its search for sun and nutrients.

In its most basic form, when the stratification process is controlled, the pretreatment amounts to nothing more than subjecting the seeds to storage in a cool (ideally +1° to +3°C; not freezing) and moist environment for a period found to be sufficient for the species in question. This period of time may vary from one to three months.

Soaking the seeds in cold water for 6–12 hours immediately before placing them in cold stratification can cut down on the amount of time needed for stratification, as the seed needs to absorb some moisture to enable the chemical changes that take place.

After undergoing the recommended period of stratification, the seeds are ready to be removed and sown in the nursery bed for germination.

Alternatively, the seed may be sown in small pots filled with moist soil and then the whole thing enclosed inside a plastic bag before placing inside a common refrigerator

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