Here you can find a comprehensive list of herbs and their magical correspondences. This is by no means all of the herbs that you can use but it is enough to get you started in your magical herbal quest.
Echinacea – strengthens the power of spells and charms
Elder Berries – prosperity, wealth, abundance rituals & spells, aid to sleep, protection. fae magic
Elder flowers – wishes & truth, exorcism, protection, healing, prosperity & sleep. fae magic
Elder leaves – purification, fae magic, love
Elecampane – love spells, communication with fae realm, promotes joy
Eucalyptus leaves – protection, healing, cleansing,
Eyebright – memory, clairvoyance, divination, and meditation
Feathers – promotes change, cleansing, protection, smudging & to make magical quills
Fennel – confidence, courage, fertility, longevity, love, protection, psychic protection, purification, strength, consecration, divination, gain, meditation
Fenugreek Seeds – protection, wealth, happiness, health
Fern – protection, luck, riches, finding hidden treasure, restoring youth, health, fae magic
Feverfew – protection from accidents and illness, hex breaking
Flax Seeds – prosperity, Wealth, and Abundance Rituals And Spells
Fleabane – exorcism, protection, chastity
Frankincense – spirituality, protection, exorcism, consecration
Fumitory – used in incense for drawing money