The Harvest Fertilizer is less of a traditional container and more of a resource node. It is a unit of fertilizer that you interact with to collect directly. Has a loot animation, but no inventory surprise. You press it, you get Fertilizer. That's the whole transaction. Found across Hydroponic Dome Complex and Village in Dam, as well as Blue Gate sectors including Abandoned House, Harvest Fertilizer nodes appear in various locations across maps in areas that make contextual sense for the item sometimes. So when is it actually worth stopping for? Three scenarios: Trading with Celeste. If Fertilizer is on her current trade list for Seeds, stocking up from these nodes and recycling into Assorted Seeds later can be an efficient way to fuel that exchange. Seeds have broader utility and trade value, making the conversion worthwhile when the option is available. Quests and projects. Fertilizer appears as a required item in certain quests, notably involving Tian Wen. If you're mid-quest and need it, knowing the spawn locations across these sectors will save you time. Raw sell value. Fertilizer doesn't sell for much, and if your run has been light on valuables, grabbing a few on the way out is easy passive income. Outside of those three cases, Harvest Fertilizer is easy to skip. It's a single-item node with no variance and no crafting depth beyond its specific use cases. But for players actively working through Celeste trades or Tian Wen quests, knowing where these spawn is genuinely useful information.