You can plant a terrarium bottle garden. No maintenance needed. There are bottle gardens that haven't been opened for 40 years. It will develop some algae thoug

You can plant a terrarium bottle garden. No maintenance needed. There are bottle gardens that haven't been opened for 40 years. It will develop some algae though, and it does look rather wild. Aquarium plans and ferns are suitable contenders. I have a Progestemon erectus plant in a jar, Hemianthus callitrichoides mixed with Eleocharis pusilla in a rectangular plastic box, Micranthemum 'Monte Carlo' in another box and in an open bowl filled 1/2 with aquasoil that we keep on the bathroom window and mist regularly. There are also more beautiful plants such as Bucephalandra or Cryptocoryne but I've only planted them submersed. Bucephalandra will attach to and grow on driftwood and rocks. http://theaquaticplantsociety.org/world-of-bucephalandra/ http://theaquaticplantsociety.org/world-of-bucephalandra/ With bottle gardens as with tissue culture, your worst enemy is mold.