Azalea is a solid block that can be grown into an Azalea tree using bone meal. Azaleas can be broken instantly with any tool or by hand, and they break when pushed by a piston or when water flows into them. They naturally generate on moss blocks in lush caves. If not harvested with shears or a Silk Touch-enchanted tool, Azalea leaves have a 5% chance to drop an Azalea. Bone meal applied to moss blocks also has a 15% chance of growing azaleas within a 3×3 to 7×7 area.

Azaleas can be placed on various blocks like grass, dirt, coarse dirt, and moss blocks, and they are used as fuel in furnaces. Additionally, when used in a composter, they have a 65% chance to increase the compost level. To grow an Azalea tree, bone meal must be used, with a 45% chance of success if the required space is clear.