As a general rule, you want to plant your hop rhizomes after the threat of frost has passed. Frost can kill off your hop rhizome before it gets started. Dr. Leonard Perry of the University of Vermont suggests planting hops around the first of May in hardiness zone 4, and two weeks earlier for each successive hardiness zone. For example, if you live in hardiness zone 6, you would plant your hop rhizomes four weeks before the first of May. Hop plants are perennials, so if the plant makes it through the first year, it will return each successive year. Hop plants can live up to 25 years.
Hop plants should be planted in an area where they will get a lot of sunlight. Dry and warm conditions are ideal, but hop plants can grow in a variety of different climates. Hops grow on vines, so it is important to have some type of support structure around which these vines can grow. A traditional trellis will work for this purpose, as well as a fence or a rope. Hop vines can grow up to 25 feet long, so ensure your support structure is large enough.
Dig a small hole (about 2 inches deep) and place the rhizome in this hole. Ensure the buds are pointing up when you plant it. Fill in the hole with a mixture of dirt and fertilizer. Plant multiple hop plants of the same variety at least 3 feet apart. If you are planting different types of hops, plant them at least 5 feet apart.
The care of hop plants depends on your climate. Young hop plants will need to be watered daily if you live in a dry climate, but in wetter climates, you may not need to water young plants at all. Ensure the ground around the hop plants is moist but not sludgy. During the warmer summer months, water as needed. If the hop vines turn yellow and begin to droop, it is likely because they haven't been watered enough.