After a long break, I finally grew a few plants again. Mostly, because I wanted to know how many Seeds of Renewal they would yield. Here's my result, which may be interesting for you folks: 100 plants of different types (my personal backpack limit) Duration: approx. 2 weeks (using fertile dirt to speed things up) Resources: approx. 5 kegs of greater poison and 5 kegs of greater cure Harvested 8 seeds from all plants Yielded approx. 30 Seeds of Renewal total (results may vary) I think it is much less time consuming gathering those seeds by gardening, instead of killing Ratmen in the Cavern of the Discarded.