Do Venus fly traps do well in a terrarium? Thank you, Jim.
Venus Fly Trap
Certified GKH Gardening Expert
Venus fly traps can have difficulty in a terrarium for several reasons. One is that terrariums can get hot inside (by the greenhouse effect). They also need soil drainage to prevent root rot, but a terrarium that has drainage holes in the bottom can take care of that.
Venus fly traps do need some humidity, but it can also get excessively humid inside a terrarium, so if you do grow one in a terrarium, make sure there are ventilation holes in the top.