So far the garden has been working great. I finally managed to take a full video overview of the project showing the systems and function. I find video works far better than long text articles. Here is the full YouTube walk-through:

I'm just tidying up the code and will publish it here soon. I'm really trying to ensure the Arduino code is usable by anyone. To do this I'm commenting just about every line in the code. Right now I think there are more comments than code :) Should make it easy for other people to easily replicate this in their own home.

Cheers!

Eric