A rhizome is a piece of a hop plant that will sprout roots when planted, and it's what you will need to purchase if you want to add hops to your garden. Rhizomes are available from most online and local home brew shops in the spring.
A snake ring on the third finger suggests this is an emotional person and they are using the snake to mitigate their emotions. A snake ring on the fourth (little) finger, suggests this is a person with sexual inhibitions and they are using the snake to either hide or overcome this problem.
They represent all that is evil, corrupt and dangerous. Others say that snakes are a sign of sexuality, potency or psychic energy. In your dream it sounds like your association to the snake was one of evil and mistrust. It also sounds like in the dream you were the only one who.