Living sphagnum moss 
Sphagnum sp.

There are over 380 species of sphagnum moss in the world, including tropical ones. In my cultivations, I use a temperate variety that is frost-resistant. I use it for my carnivorous plants that grow in it. It also has many other uses. Thanks to its high water retention capacity (up to 20 times its weight) and airy structure, it helps tropical plant cuttings take root. It can also be mixed with pine bark for orchid cultivation. Thanks to its low PH (acidic), it prevents the appearance of fungi and microbes. It was also used as a wound dressing for its anti-microbial properties until the Second World War.

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To grow sphagnum, use rainwater or osmosis water. It thrives in a bright, sunny spot, but will also thrive in shade. As it is a bog plant, it should be grown on a bed of dried sphagnum moss or blond peat. As it degrades, it turns into peat. It takes one year of growth to obtain 1mm of peat. Over time, living sphagnum will colonize the dried sphagnum. As it grows, it takes on a beautiful green hue, turning more yellow in winter. A hard frost won't cause it any problems, and it'll start growing again in spring.