Posted: 18/10/2016 at 20:31
I'm afraid I'm a bit of a nerd when it comes to record keeping.
I have an excel spreadsheet that I enter my purchases onto, when and where I ordered plants from, was the supplier good, quality of plants, did they arrive on time etc.
I have another excel spreadsheet (if you search on the internet this one is ready done as a template) It has a page for plant inventory (columns for species, variety, size, colour, location etc etc.). I also record plants that fail or I didn't like so that I don't buy them again by mistake.
Another for seed starting log. When sown, when germinated etc.
A third for Tasks and a fourth for garden planning (I don't use these two).
I keep a gardening diary which gives me an idea of what the weather was like and what did well each year and what didn't.
Finally I have a sketchbook that has drawings of each bed (or section of a bed) and what is planted where so that I don't dig them up by mistake or overplant.
I know it sounds like overkill but it doesn't take much time and helps me avoid expensive mistakes.