Hyssop is bound to Jupiter and fire.  It has a camphor-like odor, and has long been known as a cleansing herb.  Records of its use date back to the 7th century, where it was used as a strewing herb to freshen sickrooms and kitchens, and as a cleansing herb for sacred places.  Use it in protection rituals for mind and body (drink as a Tea), or sprinkle the Oil around the house to protect it.  Use in purification and healing baths (place a handful in a mesh bag and attach it to the tap so the water will run through it). 

Hyssop has also been associated with the energy of dragons.  Burn it as an incense, or throw it in a fire to gain the power of the dragon.