The choices for terrarium containers are only limited by your imagination.  Traditionally
a smaller aquarium is used with a lid but a glass jar or other container will work nicely
too.  Plastic will work as well, just make sure that it is a clear plastic or you won’t be able
to admire your handiwork once it is completed.  Whatever size or material you choose for
your terrarium the most important factor is that it does not leak.  You need the water and
moisture to stay inside for it to work and you don’t want a mess inside your house.

The plants that you choose should all thrive in similar conditions and grow well in a
humid environment.  Popular plants to put into a terrarium are carnivorous (Venus Fly
Trap, sundew, or pitch plant) or rain forest plants (chamaedorea palms, small ferns or
fittonia). 

Terrariums are a low-maintenance indoor garden.  They need indirect sunlight (not too
bright) and no water is needed after the initial water is added.  The heat from inside the
terrarium evaporates the water and then it condenses on the lid falling back down to the
plants.  This process will continue keeping your plants alive.  If there is too much water
present, you may need to vent the terrarium (with a vented lid or opening the top a small
amount) just be sure to keep an eye on the soil’s moisture level (not too wet or dry).