Because light affects herbs adversely, It is best to store herbs in airtight jars that are either ceramic, or translucent. Jars such as amber or cobalt work well. Plastic jars tend to absorb the oils from the herbs, so glass is preferable. Even if you do not have access to these types of jars it is best to store them in a cool dark cupboard or cabinet.
Raw herbs have varying shelf lives The general rule of thumb is six months for leaves. One year for seeds and soft roots. About a year and a half to two years for barks and hard roots. Freezing extends the life by about 50-60% but can damage the herbs if not stored properly.