The one exception to this is the family of cacti and succulents, prone to rot in humid environments. These are better kept in open dishes.
Terrariums require a minimum of care if they are kept sealed.
The moisture that plants absorb from the soil is given off through the leaves by the process of transpiration. This condenses on the glass walls and runs down to moisten the soil again. The atmosphere also remains balanced through the combined plant processes of photosynthesis and respiration. A well-constructed terrarium requires only light and warmth to flourish. Any clear or tinted glass or plastic container can be used if it will admit light and allow plants to be seen.