Fir Needle Oil Siberian is steam distilled from the leaves and twigs of the Siberian Fir, which grows across the boreal forests of Europe and Asia. Its aroma is strikingly like that of the tree with a bracing medicinal topnote and a deep greenness that works well in holiday themed fragrances, notably candles. It can be used across applications especially when blended with the similar Juniper and Rosemary Oils.