That's a fascinating blend of old and new. From a systems standpoint, you could map the biochemical pathways of those ancient remedies and encode them into a sensor array that triggers the greenhouse's actuators. The real challenge will be ensuring the plant-derived signals are reliable enough to drive the mechanical logic without causing erratic behavior. I’d start with a modular prototype—one plant species that produces a clear, measurable compound, then link that to a simple actuating routine. Keep the feedback loops tight and don't let the autonomous routines drift beyond the intended therapeutic range. Also, remember that the real world rarely sticks to textbook formulas; add redundancy and a human oversight layer before scaling.