Nether Wart Blocks are solid, red-colored decorative blocks found in crimson forests and crafted from Nether Wart.

Nether Wart Blocks can be obtained naturally as part of huge crimson fungi or by crafting nine Nether Wart in a square formation. They are primarily used for decoration but cannot be crafted back into Nether Wart. Nether Wart Blocks can be composted with an 85% chance of increasing the composter level. Piglins, Zombified Piglins, and Hoglins do not spawn on them, making them useful for mob-proofing in the Nether.