Grow a Garden Fertilizers
Complete guide to all fertilizer types, effects, durations, and how to get them.
Compost
CommonSpeeds up crop growth by 25%
Quick-Grow Fertilizer
UncommonCuts crop growth time by 30%
Double-Yield Fertilizer
RareIncreases harvest yield by 50% for 1 hour
Mutation Fertilizer
RareIncreases mutation chance by 15%
Mega Fertilizer
EpicCombines growth speed and yield boost
Silver Fertilizer
Legendary5x fruit value multiplier
Gold Fertilizer
Mythical20x fruit value multiplier
Rainbow Fertilizer
Prismatic50x growth speed multiplier + higher rainbow mutation chance
Fertilizer Stacking Guide
Important Rules
- ✗Fertilizers cannot stack with each other – only one active at a time
- ✗Applying a new fertilizer replaces the current one (no refund)
- ✓Fertilizers do stack with gear effects and pet bonuses
- ✓Silver Fertilizer has ~10% chance to become permanent
Silver Fertilizer Strategy
- 🥈Roughly 10% chance to permanently apply the 5x multiplier
- 🌱Apply to your highest-value crop for maximum return on investment
- 📅Stock up during the Beanstalk Event and Seasonal Shop restocks
- 🔁Reapply before 2-hour window expires to maximise uptime
Best Strategies by Fertilizer Type
Growth Speed Fertilizers
Use Compost or Quick-Grow on multi-harvest crops like Tomatoes to maximise the number of harvests per session. Pair with growth-boosting pets for compounding effects.
Value Multiplier Fertilizers
Silver, Gold, and Rainbow fertilizers dramatically increase crop sell value. Apply them just before a harvest to make the most of each use. Save Gold and Rainbow for legendary or prismatic crops.
Mutation Fertilizers
Mutation Fertilizer is best combined with weather events (rain, night) that already boost mutation rates. Time it for maximum overlap to stack passive and active mutation bonuses.