Succulent terrariums: what you should know
It is certainly possible to grow succulents in glass terrariums, but there are challenges. Use only open terrariums with plenty of airflow, as the humidity in sealed terrariums is too high for succulents. Terrariums usually do not have drainage holes and glass does not breathe, so be extra careful not to over-water. Water about 1/3 the volume of the soil and do not water again until the soil is completely dry. Try not to leave the terrarium in direct sun for more than a couple hours to protect your plants from overheating and burning.
For more information, we suggest the book Terrarium Craft by Amy Bryant Aiello, Kate Bryant, and Kate Baldwin.
