Pick two plants to find out whether they grow well together, and read a short reason for the pairing.
100% Local
How to Use the Companion Planting Checker
Choose two plants from the lists and press Check. The tool looks up the pairing in a local dataset and reports whether it is good, bad or neutral, with a short explanation. Use Clear to reset the form and try another pair.
What the results mean
Good — the two plants usually benefit each other or share the same conditions.
Bad — one may inhibit the other, or their water and nutrient needs clash.
Neutral — there is no strong recorded effect either way, so grow them together and observe.
Companion planting is a guide, not a rule; local soil, climate and spacing matter just as much.
Features
Checks pairings among 36 common houseplants, herbs, succulents and vegetables
Reports good, bad and neutral results with a short reason
Falls back to each plant's own companion list when no explicit pair is stored
Works on desktop, tablet and mobile with no sign-up
All processing runs locally in your browser. Your data is not uploaded to any server.