Stratification encourages seed germination by mimicking the natural conditions they encounter during winter. This process is particularly useful for perennial plants, trees, and shrubs whose seeds require a period of cold before germination. .

The process of stratification involves placing seeds in a moist and cold environment for a specific period, typically several weeks to several months, to break their dormancy and prepare optimal conditions for germination in the spring.  

The purpose of stratification is to :

1. Breaking seed dormacy : Some seeds have a dormancy that prevents them from germinating until they have been subjected to conditions such as winter cold. Stratification helps break this dormancy and initiate the germination process. .
2. Improving germination rate : Stratification can significantly enhance the germination rate by providing the optimal conditions for seeds to begin growing.

​

1. Seed selection : Begin by harvesting the seeds from the plants you wish to stratify. Ensure they are healthy and mature. If needed, clean the seeds to remove any pulp or plant material that may surround them.

2. Moisturizing : Place the seeds in a small plastic bag with a substrate such as seedling soil, vermiculite, or simply paper towel. Add water without soaking them too much. Close the bag.

3. Refrigeration : Place the bag in the refrigerator. The duration of stratification depends on the species but can range from a few weeks to several months.

4. Monitoring : Regularly check the seeds to ensure they remain moist and do not mold.

5. Planting : Once the stratification period is completed, plant the stratified seeds in pots or directly in the ground as needed.

For more information, feel free to consult:

https://jardinierparesseux.com/2016/01/08/ces-semences-qui-quil-faut-traiter-au-froid/