Flower seeds are generally collected in three ways: dry, sand, and water. 
Dry
Most flower seeds can be harvested using this method. Dry the seeds, remove other impurities, and put them into a bag of gauze, such as a string of red and cockscombs. Do not put in a glass or plastic bag, because it is not breathable, affecting seed breathing. The seed bag can be hung in a cool and ventilated place indoors, and the room temperature can be kept at 5 °C ~ 10 °C. 
Sand
Seeds such as peony and peony can be collected in low-temperature wet sand at 0 °C ~ 5 °C. Under natural conditions, these seeds have a dormant period and mature after dormancy. Take out one month before the broadcast and sow in the spring. 
Water reservoir
Some seeds should be soaked in water after harvesting, such as water lilies. The water temperature is generally required to be around 5 ° C. When the temperature is lower than 0 ° C, the seeds will be affected by freezing damage. All kinds of seeds should not be exposed to the sun, dry and dry, otherwise it will affect its germination rate. After drying, the seeds should be placed in a cool, ventilated place. Pay attention to moisture, smoke, and rats. 
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