After collecting seeds you need dry them and keep them from moisture otherwise they began to sprout or if they still have moisture they might be frozen from inside. So first of all moisture and the condition of the wheather is substantial. And if the seeds are hard to find it makes you really sad.
After drying the seeds they still remains livelyhood from deep inside. In that period of storing them you have to be aware about moisture degree of the weather, insects and eating from other animals.
In literature seeds moisture must under %14 and if decrease %1 till %5 its average live life two times much longer. Some of the seeds can be alive at -18 Celcius degree.
As a result we can say keep the seeds in dry and cold conditions.
The points that you shouldn’t forget:
-Keep them under cold and without moisture conditions.
-Don’t let them getting moisture again.
-Write the properties of the seeds on a paper and keep it with it.
-You can keep it in a pocket or in a jar.