Mutation Fertilizer Grow a Garden – Fertilizer Guide, Effects & Cost
Quick Overview
How It Works
Boosts the chance of crops receiving mutations during growth by 15%.
Fertilizers do not stack. Applying a new fertilizer will replace this one. Only one fertilizer can be active on a crop at a time.
How to Get Mutation Fertilizer
- Gear Shop
Tip: Gear Shop stocks refresh periodically. If you don't see this fertilizer in stock, check back after a refresh or watch for it during special restocks.
Strategy Tips
Stack with weather events (rain, night) that already raise mutation rates for maximum effect.
Apply at the start of a growth cycle so the entire growth period benefits from increased mutation chance.
Use on crops with inherently higher mutation chances (rare seeds, event crops) for the best returns.
Remember: fertilizers cannot stack with each other. Only one fertilizer can be active at a time per crop.
Related Fertilizers
Community Notes
This fertilizer guide is based on the latest Grow a Garden update. Effects, costs, and availability may change during special events or game updates. Fertilizer behaviour (especially Silver Fertilizer's permanent-application chance) is community-verified and may vary slightly between sessions.
March 2026