Please add rich farmland to the #c:farmland and #c:farmlands tags, which mods use to check if plants (eg. Cobblemon's berries) can be planted on certain blocks.

You can get berries to plant by adding rich farmland to #cobblemon:berry_soil sadly this does not seem to work for mints however, I haven't been able to discern why mints aren't plantable. That said adding the #c:farmland and #c:farmlands tags do not fix the issue.