Minecraft – Why aren’t the spruce saplings growing

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So I was looking to make a big 2×2 spruce tree in minecraft, and there's plenty of space for it, but it wont grow. I am in Minecraft Version 1.11, and I am very confused.

Best Answer

"must have a light level of at least 8 in the sapling block. A sapling will uproot with light level 7 or less in the sapling block itself unless it has a view of the sky that is fully unobstructed (except by glass or other transparent materials). The sapling must also have at least 4 blocks of space above it; the amount of required space varies between the different species of trees. If there is a ceiling above a sapling, this will limit the maximum height of the tree that can grow from that sapling."

"In order to grow a 2×2 tree (be it spruce, jungle or dark oak), four saplings must be placed adjacent to each other in a square. For growth to succeed, there may be no blocks adjacent (even diagonally) to the north-western sapling (which is considered the center of the tree) up to the final height of the tree."

According to minecraft.gamepedia.com/Tree

So if you're sure it has enough space, the problem must be the light or a block close to the northwestern sapling. To find the northwestern sapling, use your debug (F3) screen