Fern is a non-solid plant block that generates naturally on grass blocks across jungle, taiga, snowy taiga, and old growth taiga biomes in Minecraft. A hardness of 0 and a blast resistance of 0 mean a single hit from any tool destroys Fern instantly. Shears or a Silk Touch tool are required to harvest Fern as an item, since any other break yields nothing. Bone meal applied to a small Fern grows the plant into a large two-block-tall variant, and breaking that variant returns two items — making the supply renewable (farmable endlessly through this growth loop).

Fern is a favourite of builders and landscapers across jungle and taiga-themed builds. A non-solid hitbox makes Fern walk-through, so the bright green fronds work perfectly as undergrowth texture beneath tree canopies, alongside tall grass, moss, and azalea bushes. Florists pair Fern with moss carpets and hanging roots to layer forest floors in market stalls, holiday cabins, and decorative gardens. A flammability of 60 means open flame and lava destroy Fern quickly, so place the plant away from fire sources. For survival players, a pair of shears turns a taiga walk into an infinite decoration supply, because bone meal regrows each harvested Fern into a large two-block variant.