Expert HerbalistG 15

Not difficult to get over the course of a playthrough since resources are quite plentiful. Wooded areas and shorelines seem to be the best places to search.

If you want to speed this up, make sure you visit different areas of the map with different biomes to get a variety of resources.

There’s also a skill you can unlock that makes resources appear on your minimap, but you might already have this achievement by the time you unlock that.