I came across the Plant Jotter and had to share with you all. It's like writing down everything you ate but only for the garden. You can write down what you planted, how much fertilizer to add and even when you last maintained that overgrown plant. This is not free (30 day free trial) but the paid version is only $21 per year which is not that expensive. The video below give you more information. The company also has more videos posted on their YouTube channel about how to use the online journal. Happy jotting!