Tempestuous

Tempestuous is catalogued among the Crop Mutations in Grow a Garden, and its name is the strongest clue to how it behaves: it points to a storm-driven, weather-triggered effect rather than a pet or a piece of gear. In this game, mutations whose names evoke tempests and storms typically appear while severe weather events sweep through the garden, applying their bonus to whatever crops are exposed at the time.

Because the entity's exact multiplier and trigger details are not recorded here, the honest read is qualitative: treat Tempestuous as a weather-conditional mutation that you secure by having crops in the ground when the matching storm rolls in, rather than something you can force on demand. That timing dependence is the defining trait of this whole mutation family.

On value, weather mutations like this are worth preparing for precisely because they stack multiplicatively with growth bonuses and other procs, so a single storm window can lift an entire planted plot at once. The smart play is to keep high-base crops planted and ready ahead of stormy conditions, so that when Tempestuous becomes active you capture it across as many plants as possible rather than missing the window.