A good title for finding out uses and correspondences is: Llewellyn’s Complete Book of Correspondences
Here’s what it says on the Vanilla entry:
Vanilla
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Zodiac: Libra, Scorpio, Taurus
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Solar System: Venus
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Element: Water
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Energy: Yin
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Chakra: Root
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Issues, Intentions & Powers: Attraction, balance (emotional), calm, comfort, community, concentration/focus, desire, energy, happiness, the home, improvement, inspiration, love (attract), luck (attract), lust, magic (general, sex), marriage, the mind, moods, passion, peace, power (magical, mental), sexuality, strength, stress, success.
I hope that helps!