Well-Oiled

Japanese gardeners traditionally protect their gardening tools from rust with oil made from the seeds of the camellia.  It leaves a deep, non-oily finish and as it is edible, odourless and tasteless it can also be used on kitchen knives.  Should you have ambitions to be a Sumo wrestler in your spare time it’s what they use on their hair! £6.50 from www.niwaki.com which also supplies fine tools for topiary.