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.
More recently they have become symbolic of sinister things. A snake ring worn on the first finger suggests this is an egotistical person and they are using the snake to enhance their status. A snake ring on the second finger suggests this is a materialistic person and they are using the snake to enhance their wealth.
In the keen Celtic mind, snake symbolic meaning of transformation came from the shedding of its skin. Physical evidence of leaving its form behind (casting off the old self), and emerging a sleeker, newer version made the snake a powerful symbol of rebirth and renewal.