Terrarium Moss refers to any of a variety of mosses used for indoor or outdoor terrariums, tropical plants as well as for reptile habitats
Moss needs a warm, moist climate to thrive, with bright sunlight in a hardy growing zone if used in outdoor landscapes. Mosses used for terrariums tend to be slow growing, but if used in outdoor aspects, can spread quickly into a lush green carpet.
Terrarium Moss has many varieties such as Pillow Moss
Pillow moss is green, dense and grows very low to the ground. It needs a very moist and brightly lit environment to grow, which makes it a good candidate for an outdoor landscaping project, as well as a sunny spot indoors for an enclosed terrarium. New England moss is another good candidate in that it holds a lot of moisture in, longer than any other type of moss. A third good choice for an indoor or outdoor terrarium is the New Zealand Sphagnum Moss.
Terrarium Moss spreads like green carpet
Soil requirements and conditions are typically unimportant when it comes to growing mosses. Mosses spread into a green carpet reasonably quickly, and there are many tips for increasing their growth if you are trying to cover a large area outdoors. The critical point here is that the soil needs to be relatively stable, so a sandy soil is not a good choice.
Have fun with your moss choices for your terrarium. Be sure to include several varieties of both textures as well as color, ranging from light green to dark green.