Spore Blossom is a decorative block that hangs from ceilings and emits green particles, creating a unique visual effect in the lush caves. These blocks can be broken instantly with any tool or by hand, though harvesting them with shears doesn't offer any additional benefit beyond using them for decoration. Spore blossoms naturally generate only on the ceilings of lush caves. They can be placed on the underside of most blocks, except leaves.

Spore blossoms are also useful for bees, as they increase the honey level in beehives and bee nests by 1 when pollinated. They can be used to breed, grow, and lead bees, and trees near a Spore Blossom may grow bee nests. Additionally, spore blossoms can be composted with a 65% chance to raise the compost level by 1.