The idea of a self-sustaining terrarium is a nice one. It allows people to enjoy little pieces of green paradise in their homes without having to put any real work into them. As Cool Hunting notes, "New flower shops are opening that focus on simple-to-care-for, visually striking plants." A self-sustaining terrarium easily falls into that category.
Designed by Emma Sibley and Tom Murphy of London Terrariums, these self-sustaining terrariums were born out of an accidental hobby that bloomed into something bigger than either of them expected. They share, "We are predominately interested in the science behind how they actually work, as opposed to making something overly kitsch or purely a commercial product. For us the theme of 'gardening under glass' is a much broader subject that permeates throughout the urban environment across the world; we see London Terrariums being much bigger than just the terrarium."