
Yellow: only some tree shapes fit here (like the narrow fancy oak), so the sapling may not grow.

Hold a sapling and press V: green spots grow a tree, yellow ones may fail. The frame shows the room the tree needs.

Under a roof the sapling would never grow – marked red, with the free space above in blocks.

Dark oak needs four saplings in a square. The preview checks the whole 2×2 and the space above it.

Light 0 – this sapling will only grow with bone meal. Place a torch and it turns green.

Spruce and jungle saplings also tell you whether a giant 2×2 tree would fit.

