Direct answer
Think of NPK as the fertilizer dimension of soil: compost raises nutrient availability, while sand and clay mostly change physical properties. A plant whose target NPK is far from your mix grows slowly or stalls.
| Nutrient | Common role | Evidence |
|---|---|---|
| N β Nitrogen | Leaf and stem growth | OFFICIAL concept; exact game math pending |
| P β Phosphorus | Roots and flowering | OFFICIAL concept; exact game math pending |
| K β Potassium | Overall health, fruiting | OFFICIAL concept; exact game math pending |
Verified values
Exact per-plant NPK targets are captured from Plant Info in the 1.0 sweep. Until a plant passes its gate, we show the mechanic and mark values UNKNOWN instead of echoing unverified demo numbers.
β
Evidence note
The existence of NPK targets is observed in the current build; numeric ranges are pending capture.
MIXEDSoil mix helper
Several guides publish NPK numbers copied from the demo. Numbers without a build label are treated as unverified here.
βΉ
NPK records are linked from every plant page and the soil helper.