I have two basic ideas on how to allow people to improve on/expand/republish this book:
With that background in mind lets look at these two options in a bit more detail.
Having a single author for a book, written from experience, has a lot of advantages. It offers a coherent philosophy, reduces duplication and conflicting advice, is practical and evidence based.
It also has disadvantages though: it can give the impression that there is only one way to garden, provides advice that's skewed towards the authors growing conditions (soil type, climate) and the subset of plants and varieties that the author grows.
To mitigate some of these disadvantages I think it would be useful to offer content from other authors that goes beyond just linking to their existing content.
My suggested approach is as follows:
There are several types of contributed content that I think would be of value:
Let's 'dig' into these a little.
I wanted this book to be written from experience, rather than complied from reading lots of other books and just regurgitating their content. As a result I'm only ever going to write about a subset of the topics that people might expect in a gardening book. The advantage of this though is that rather than reading a book that feels like a compilation: drawn from the back of a hundred seed packets; the book should feel real, honest and practical.
However there are lots of topics that I would like to include, that would naturally fit into this book, but that I'm not able to provide content for. Here's a good sample of such topics: