Bottle garden

A bottle garden is a type of closed terrarium in which plants are grown.

They usually consist of a plastic or glass bottle with a narrow neck and a small opening.

[1] The oldest bottle garden in existence is alleged to have been planted in 1960, and to have remained sealed from 1972 until at least 2013.

[3] Being easy to create and maintain, bottle gardens are also used in schools as an economical way to study miniature eco-systems within the confines of a classroom.

[1] Aerobic organisms like shrimp, snails, or bacteria take this excess oxygen for their own respiration, and return carbon dioxide to the air.

Opened bottle garden seen from above
This bottle with a lime pothos ( Epipremnum aureum ) has not been opened or watered since the plant was placed in it several months previously.