So I know most of you think that it's complete bs that Gold Leaf can only be selected in Lost City. I've come up with a fix! Simply use this download, and it gives you an obb that has Gold Leaf selectable in ALL worlds!
NOTE: There's a side effect of this that makes Hot Potato, Lily Pad, and Tangle Kelp selectable in all worlds too. However Hot Potato and Tangle Kelp can't be planted, and Lily Pad can be planted, but it doesn't do anything. You can use the boosted Lily Pad trick to scum ALL last stands though.