When you plank a single elm sapling it grows into a 2x2 tree, like what a spruce or jungle tree could grow into, but normally you need 4 saplings for spruce or jungle but with Ultra Elm you only need 1. This results in you being able to "grow" dirt with Ultra Elm trees.

Example: Place a grass block in the air (I went up like 5 blocks above other blocks so that it's fully around air only, then place a single sapling, and it grows 2x2 full tree, giving you 3 new dirt in the process.

Also if you place diamond blocks, or chests, or anything around the 1 grass block, the tree will replace it with dirt.

|Diamond block | |Diamond block |
| Dirt | |Diamond block |

turns it into
| Dirt || Dirt |
| Dirt || Dirt |

Hi! This ticket is now incredibly out of date, and likely no longer is relevant to our latest Pixelmon versions. Please see downloads.php for the latest version!

If this bug still happens in that new version, please open a new ticket with all relevant information.