Direct answer

To mix soil: place the plant in a planter, open Plant Info and read the target components. Add compost, sand or clay to move the mix toward the target. If the soil is wrong, the game tells you it needs diluting or adding β€” not 'guessing'.

Step by step

  1. Assign the plant to a planter that fits its stage.
  2. Open Plant Info to see the current vs target soil composition.
  3. Add the missing components (compost, sand, clay) one at a time.
  4. Re-check the target; overfill causes its own warning.
  5. After harvest, clean or repurpose the planter correctly for the next crop.

Component table

ComponentRoleEvidence
CompostNutrients / organic content β€” feeds NPKOFFICIAL
SandDrainage up, water retention downOFFICIAL
ClayWater retention up, drainage downOFFICIAL
CombinedUnique plant targetsUNKNOWN per plant pending sweep

Repurposing a planter

Repurposing a planter for a different crop fails when the soil composition is wrong β€” the game blocks the plant and suggests diluting or adding components. This is one of the most reported launch-week stalls and it is a soil problem, not a bug.

βœ“
Evidence note

Exact per-plant ratios come from the Plant Info sweep. Until then this page teaches the workflow with verified mechanics and honest unknown values.

OBSERVED

Community report: repurposing triggered 'soil composition wrong' and the plant would not grow β€” matches the official diluting/add guidance.

Steam discussions
β„Ή

The interactive helper (plant Γ— stage selector β†’ required mix) ships once the verification threshold is met β€” it lives on this URL, not a separate one.