Yarrow is a complex essential oil.Depending on the country of origin and the plant's botany (either diploid or triploid), yarrow oil can range from bright, sapphire blue or to a hay-like green -yellow colour. The smell of the blue essential oil is potent, intensely herblike, sweet but with a sour edge like old balsamic vinegar: somewhere in the middle of the smell you can tell it comes from a flower, but it is not floral and it reminds one of wild places and open fields in summer.
Yarrow hydrosol....is well, it's a bit stinky, really. One client described it as puppy breath.There is absolutely nothing flowery in the odour, but if you can bring yourself to get past its scent, yarrow hydrosol is one of the most versatile tools for regaining and maintaining health. It has broad applications for most of the body, including the digestive, endocrine, and circulatory systems, is inceredibly purifying and works wonder for skin and hair care.
Consider also Greenland Moss, sometimes called Labrador tea (Ledum groenlandicum). Around one thousand kilograms of wild-harvested Greenland moss are required to make one kilo of oil.It grows in peat bogs in out-0f-the-way places and even well north of the snow line. This certainly contributes to the power of its effects. The smell of Greenland Moss oil is divine: the savage garden, the sweetness of spring rain, and peace-deep, profound, and lasting peace that touches the soul.
If Gaia chose a perfume, it would be this. The hydrosol is flatter, slightly musty: you will recognise it as Ledum, but if you adore the oil, the water will disappoint. However, its therapeutic benefits make it worth using, and it is a specific for the liver that is incomparable among hydrosols.
So what do you do when you don't like an odor? Have a little conversation with yourself, rationalize it, then do what you do with your oils: blend. There are many sweet and yummy hydrosols to play with, and even yarrow can be disguised with a little mixing and matching. Just bear in mind the physiological properties of your combinations so you know what to expect in the way of effects.
Not all hydrosols smell bad, of course. Most don't; they just smell different. and like smelling an oil for the first time, your senses have to integrate the information carried in the aroma (and taste) before you really get to know a hydrosol.
Although aromatic, hydrosols are not oils; they are aromatherapy in the broadest sense of the word. When using hydrosols, you use the smell, the taste, and the chemistry of the substances to achieve your therapeutic goals.