Rainbow Fertilizer

The Rainbow Fertilizer is a prismatic-tier gear, not a weather effect, which is why its row carries no flat sell multiplier or visual trigger condition. It was added in the second half of the Fall Market Event and is sourced from the Forever Pack, marking it as a premium, event-window item rather than something you stumble into through ordinary farming.

As a fertilizer gear, its value lever is application rather than a fixed number: you use it on crops to push mutation and growth outcomes, and being prismatic puts it at the top of its category for potency. That makes it a tool for manufacturing high-value harvests instead of a multiplier that stamps itself onto produce automatically, so its real worth shows up in the crops you treat with it and then sell.

Is it worth chasing? For serious growers, yes, prismatic fertilizer is exactly the kind of gear that lets you steer toward the mutations and sizes that fetch the best prices, amplifying everything else in your loadout. Just note the access path: tied to the Forever Pack and a past event, so availability is the real constraint. If you have it, lean on it for your highest-base crops where the boost compounds hardest.