Birch trees generally grow to be between five and seven blocks tall, but you can find rare 'mutated' forest biomes where the birches reach 13 blocks in height. An ideal place to build a treehouse, safe from marauding mobs! This set includes: Exclusive Witch on Fire Figure (With Removable Fire) Birch Tree with Falling Action, 2 Double Sided Wall Panels, Floor and 3 Lava tiles. Walls can be flipped around to create a hillside look with grass floor, or a cave with stone floor. Not suitable for children under 36 months.