Multifarm is currently not functioning properly with many modded trees, including Biomes O' Plenty (BoP) and others, despite these saplings being correctly labeled in the Ore Dictionary. Unfortunately, there is no reliable workaround available at this time.

It would be great to have this fixed so that multifarms actually work properly with modded trees like BoP and others, just as they’re meant to—functioning fully as true multifarms.