Moss blocks in Minecraft are quite useful. When you give her bone meal, she has a chance to become several different varieties of plants, especially Azalea and Flowering Azaela, the rarest version being the flowering version. It can also become a Moss Carpet, a grass carpet that you can place over any block.
There are two ways to get a Moss Carpet. The fastest way is to lay Moss Block and then feed it with bone meal. Moss Block has a chance to make a Moss Carpet block, but it’s not reliable. You will need to give Moss Block and another of these bone meal blocks to have enough Moss Carpet.
An alternative is to approach a craft table with two Moss blocks and turn it into three Moss Carpet blocks. Moss Blocks can be a little hard to find. You can usually find them inside the Shipwreck chest, or you can get two of these blocks by exchanging one emerald for a Wandering Trader. Once lush caves appear in Minecraft, Moss Blocks have a chance to reproduce naturally in these places, as do Moss Carpet blocks.
To move a Moss Carpet tile, you must hit it and then lift it. After harvesting, you don’t need a specific tool to harvest it, so you don’t have to worry about placing it in the wrong place.