Fertilizer
Fertilizer is an item that can be used on flowers at any growth stage in any flower plot. It can be obtained from composting seeds, flower seeds, troweled flowers, or plucked flowers using the 
Composter that the player unlocks during the "Mulch Be Well" quest.
Lutz and 
Marin will gift the player 
Fertilizer when visiting the island.
| Image | Name | Tags | Rarity | Source |
|---|---|---|---|---|
|
|
Fertilizer | N/A | Common | Composter
|
Other Sources
- Obtained by completing certain
Challenge Courses in 
Merry Meadow a fourth time but can only be obtained once per course (and not from many courses).
Usages
- Increases seed propagation
- Increases chance of successfully crossbreeding
- Has a chance of giving a flower a rare pattern (e.g. the
ombre pattern)
How to Use
To apply Fertilizer to a flower, the player should make sure the flower plot is highlighted as selected, then press the action button for Fertilizer. The button shows how many are left in the player’s inventory. To apply Fertilizer to all flowers in a flower patch, the action button should be held down until the meter above the player’s avatar fills up, then released.
Fertilizer can be used once a day on any flowers except for fully bloomed flowers, newly planted seed packets, and replanted seedlings. A flower can also be fertilized before and after blooming if it blooms from being 
watered.
Fertilizer increases seed propagation (or the chance of a flower producing seeds), increases the chance of a flower successfully crossbreeding, and may give a flower plant without a pattern the default pattern for that flower's type. Once a flower has a pattern, it can be used to transfer its color across flower types by crossbreeding with other flower types.