Do you want to be a gardening ninja? Able to make plants grow quicker, better, stronger, through seemingly mystical skills? Astound your neighbors, make your friends jealous, all you need is not some ancient Chinese martial art, but science! That miracle of modern, well…, science! There are three neat gardening tools we can thank science for, all are safe, all are natural, all are even frugal in the long term.
Source: Backyard Gardening