The added plants would have to be spun using the vanilla recipe. If I added those recipes in this mod they would show up in all games, even if the other mod wasn't installed. A mod could be made to add recipes for those plants using this mod as a template, if anyone wants to do that. I do not currently use any mods that add new plants, and making companion mods for all of the mods on the Steam workshop is something I don't believe I could effectively maintain.

How would this interact with mods that add plants? Will it add options for all spinnable plants? will the added plants be not-spinnable?

It should work as long as it's placed below anything that uses [CUT_ENTITY:]. If you have another mod that changes the dwarf's entity, try placing this afterwards.

This doesn't work for me. The new options aren't available. Does it need to be somewhere specific in the load order?

Wonderful, thanks!!

Should be in vanilla!