Direct answer

Companion relationships matter mostly for pollination and pest pressure. A verified pair list is being built from 1.0 observation; until a pair is confirmed it is labelled Community, not fact.

How companions work

  • Some plants attract or repel specific insects β€” check the pests page for aphid behaviour.
  • Pollination flags decide whether a plant needs a pollinator near it β€” see pollination.
  • Companion effects are per-plant, not per-room: proximity is what counts.

Verified pairs

PlantNeighbourEffectEvidence
BasilTomato neighbours (reported)Growth / pest comfort (reported)COMMUNITY β€” verifying in 1.0
CornflowerPollinator attractor (reported)Aids pollinationCOMMUNITY
Marigold-type flowersVegetable rowsPest pressure (reported)COMMUNITY
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Evidence note

No pair is published as verified until it is reproduced in the current 1.0 build. Empty cells are honest unknowns β€” the game data sweep targets them next.

MIXED

Most current companion guides are copied between fan sites with no build label. Treat them as Community evidence.

Plant database
β„Ή

Companion relationship data feeds the Companion Finder helper and is stored as structured records.