Spirit Leaf (Plant)

Spirit Leaf is a Plant that can be grown in a Herb Garden. It produces Settings\ThingDef\Plant\Plant_Special.xml, which is used in the creation of Pills. 
===Yield / day===
As Spirit Leaf is a low Plant, it has a rest time between 19:00 (7PM) and 4:00 (4AM) everyday, making its actual Growth time:
 (40 * 0.95 + 17) * 24 / 15 = 88 days
At 100% Growth Speed.
With >100% Harvest Yield, it means you obtain 3 every \frac{88}{GrowthSpeed} days, or 1 per \frac{29.33}{GrowthSpeed} days per plot.
==References==