Terrariums are decorative gardens that are grown in saleable glass containers that provide just enough of an opening for the gardener to access their plants. Terrariums can also be grown in open glass containers.
In many ways, a terrarium is like an aquarium, except instead of fish, they are used to house and grow plants.
Because the plants are grown in glass containers, terrariums are often considered self-sustaining small gardens.They are a small, enclosed environment for certain plants. Think of it as a mini-greenhouse. The containers for terrarium gardens are typically transparent, such as glass or plastic.
There are mainly two types of terrariums, closed and open. closed terrariums have a removable lid while the open terrarium does not.
There are many species of orchid plants that can be used in an your terrarium. it can be either open or closed. Some of the best and most preferable types of orchid plants for terrariums are
Phalaenopsis or moth orchids
Vanda orchid or Singapore orchid
They are indoor gardens in a sealed container. The plants and the soil in the terrarium release water vapour essentially recycling water. The vapour is then collected onto the walls of the vessel and trickles down to the soil. Terrariums are self-nourishing, which is why they require little maintenance, if sealed. Tropical plant varieties, such as mosses, orchids, ferns, and air plants, are generally kept within closed terrarium due to the conditions being similar to the humid and sheltered environment of the tropics.
Open terrarium are better suited to dry plants such as succulents. Not all plants require or are suited to the moist environment of closed terrarium. For plants adapted to dry climates, open, unsealed terrariums are used to keep the air in the terrarium free from excess moisture. Open terrarium also work well for plants that require more direct sunlight, as closed terrarium can trap too much heat potentially killing any plants inside.