Download and print out this word doc for your Permablitz or next planting day. It is very useful in letting you know what plants like growing next to other plants (COMPANIONS) and which ones do not (FOES). Foes, obviously do not like living next door to each other and this can negatively effect the growtha dn happiness of plants.
Plants can benefit greatly by having a friendly neighbour - benefits may include things like, one plant acts as a pest deterant for its neighbour, or one plant may produce nitrogen which its neighbour needs etc etc.
Wanted to know if it had any local relevance/source?
In our garden in Sydney, we have found the overseas companion books not that helpful in the difference between growing something amongst bad companion plants Vs good companion plants was nil.