Jackie French's Guide to Companion Planting in Australia and New Zealand

"The associations in this book have been tested by me over the past 15 years. Some have been accidental observations which I have followed up; others have been folklore I have tested. Several associations discovered through current research in Europe, the USA and New Zealand, I have observed in Australia as well. The last five years seem to have been mostly spent on counting insects and measuring new shoots. But I hope it is at least a basis for companion planting that works in Australia and New Zealand. Scientific names have been included only where one plant might otherwise be confused with another." -- Taken from the Introduction.