if you're not strickly only making more *plants*, you could also add your own brand of medicinal mushrooms with picker growth requirements and funky effects

Just imagine a rare large 2x2 mushroom that spawns like the ambrosia bushes that produces gasses that slow down infection progress rate, that can be harvested for a weaker but storeable dose.

or a mushroom that cure pesky finger and toe lost - but at the cost of their growth reqiuring large amounts of corpses like the harbinger trees, while also making the product give a guaranteed minor mental break from its mentally traumatising side effects.

or even something like a fast growing addictive mushroom that increases healing when eaten, but cause fungal infections in colonists that have to be treated

you dont have to follow these to the tee, but i hope it inspires you to make even more cool stuff!