Visit Pelagos, an insular planet of coconuts. Use calciners to refine resources, and unlock cargo ships as the perfect way to connect its scattered shores
Added Pelagos to an existing save. Dropped down and there were 0 trees.
Removed Alien Biomes from the modpack and reset the chunks. Palm trees were present.
Unsure if this affects fresh saves that start with both loaded (have not tested)