This mod introduces a simple game mechanic for propagating the reed plants tule, cattails, papyrus, and brown sedge. When the tops (not the roots) are harvested they have a 20% chance to drop a single root/plant in addition to their normal drops.  Think of it as finding a new plant shoot in amongst the existing stems.  This way you can gradually increase your crop without having to search far and wide looking for specimens to transplant.

This mod pairs well with the Zippy's Thatch Patch mod.