Building a Terrarium

I found this $12 hand-blown Polish glass canister and thought it looked the part for a terrarium, so I put one together yesterday.

The base stratum is clays balls to absorb water and create a "groundwater" space on the bottom. 

 

A screen over the clay balls keeps out the soil, which is a tropical mix mostly made out of coconut husk.  

The three plants are a maiden hair fern, some sort of small groundcover vine with tiny leaves, and a carnivorous pitcher plant.  We shall see what lives.