Hi CS
ok nice questions lets go one by one:
1) What are the 4 things you know now that you wish you knew at the start?
The most important things in design are the main frames which also appear to be the simplest and we tend to skip over them too quickly because we want to get to all the small fine details. There are very few main frame design decisions to make and they are usually the most permanent and enduring and set the themes of your design, take your time and be absolutely sure and confident and comfortable with this, enjoy the journey with all your heart, and don't be surprise that when you get to all those incredibly numerous diverse fast moving flexible finer points that they can be just intuitive blink decisions. Nice and meditative events at the fine end of design implementations are truly the best human therapy for the modern world chaos that most of us have been inflicted with.
2) What is the best way to maximize the benefits of a hugelkulture system over the long term? (annuals, perennials, crop rotations....)
Perennials on the the corners, ends and edges for security and stability, annuals over the area, companion plants preferred over crop rotation where possible, don't forget the
mushroom crop, or having lots of fun.
3) What was your worst mistake and why did you make it?
Putting in good design patterning harmonizing with the continuum of form in the landscape and not succession planting because I thought I was young
enough, and fit enough to over power the need for the appropriate succession species required to build soil in that climate and because as a young Englishman farming with
permaculture for the first time in Australia with a romantic passion to grow bananas, which are not actually trees be large herbaceous plants. A hard lesson anchored in my memory by the blisters on my hard working hands.