Essential oils for the garden: peppermint, rosemary, cedarwood, clove, eucalyptus, citronella and lemongrass for homemade pest-deterrent sprays; sweet orange and lemon for cleaning tools and pots. Pure, concentrated oils that go a long way when diluted in water with a little castile soap.
Recipes and ratios are in our guide to the best essential oils for gardening.
