Gadenin日本語Get the appWhy you plant a piece of a plant, not a seed
Hops are dioecious: male flowers and female flowers grow on separate plants, and only the female produces the papery green cones that anyone grows hops for. A seedling has roughly even odds of being male, and you will not find out until it flowers, which can take two or three years. That is why hops are sold and swapped as rhizomes, which are lengths of the underground stem cut from a mature female crown, or as rooted cuttings taken from a female plant's shoots.
A rhizome looks unpromising: a knobbly, pale, finger-thick piece of root six to eight inches (15 to 20 cm) long with a few white buds along it and some hair roots. That is normal. What matters is that it is firm rather than shriveled or slimy, and that it has at least two visible buds. Rooted cuttings in pots establish faster and are the easier option if you can find them.
If you have been given seed, treat it as a curiosity rather than a crop. Even if the plant turns out female, an unnamed seedling can be low in the resins that make hops worth having, and a stray male nearby will pollinate your females and leave you with seedy cones.
If a hop plant flowers and you see loose sprays of small pale flowers with dangling stamens rather than tight green cones, that plant is male. Dig it out unless you intend to breed; it will seed every female within a considerable distance.
Choose the site for height and for sun
A hop bine climbs 15 to 25 feet (4.5 to 7.5 m) in a single season and then dies back to the ground. The first question at any site is therefore vertical: is there something 12 feet (3.6 m) tall or more that you can run strings from, and is there room for the strings to be reached at the top for harvest? A wall, the gable of a shed, a stout post and a pulley, or a wire strained between two posts all work. A four-foot trellis does not; the plant will simply run out of height in early summer and pile up on itself.
Hops want full sun, at least six hours and preferably eight. In shade they still climb but set few cones, and the ones they set stay small. They also want moving air; a bine trained flat against a solid wall with no gap behind it will get powdery mildew every year.
The soil should be deep and free-draining, ideally a loam with plenty of organic matter dug in. The crown sits at the surface for decades, so wet winter soil will rot it. On heavy clay, plant into a raised mound eight to twelve inches (20 to 30 cm) high rather than trying to improve the whole bed.
| Requirement | Target | What happens if you miss it |
|---|---|---|
| Vertical run | 12 to 20 ft (3.6 to 6 m) of string | Bines tangle at the top and shade themselves |
| Sun | Six to eight hours direct | Vigorous vine, very few cones |
| Airflow | Gap behind the strings, room between plants | Powdery and downy mildew every season |
| Drainage | No standing water in winter | Crown rot, plant fails to return in spring |
| Soil depth | 12 in (30 cm) of workable soil | Slow build-up, poor cropping in years three and four |
Plant while the ground is workable and still cool
Rhizomes go in during the dormant window: late winter to early spring, as soon as the soil can be dug and before the buds have pushed more than an inch. Rooted plants in pots can go in a little later, once hard frost is past. Do not wait for warm weather; hops start into growth very early and a rhizome planted late spends its first month catching up.
- Prepare a wide station, not a narrow hole Dig over an area about 24 inches (60 cm) across and a spade's depth. Work in two or three shovelfuls of well-rotted compost or manure and, on poor soil, a handful of a balanced granular fertilizer. Hop roots go down several feet eventually, so loosening depth pays off more than adding richness at the surface.
- Lay the rhizome horizontally Set the rhizome flat, buds pointing upward, in a shallow trench so that it is covered by one to two inches (2.5 to 5 cm) of soil. Deeper than that and the shoots exhaust themselves reaching daylight. If you cannot tell which way the buds face, plant it flat and it will sort itself out.
- Set potted plants at the same depth they grew A rooted cutting or a potted plant goes in with the top of its rootball level with the surrounding soil. Firm gently, then water in well to settle soil around the roots rather than to wet the bed.
- Space plants generously Allow three feet (90 cm) between plants of the same kind and at least five feet (1.5 m) between different ones, so that you can tell whose bine is whose at harvest. Anything closer and the canopies merge, airflow collapses and mildew follows.
- Mark the spot clearly A rhizome sits underground and invisible for weeks and is very easy to fork through while tidying the bed. Push in a cane or a labeled stake the day you plant, and note the position of each plant in your records along with what you planted and when.
What the first season looks like
Expect a modest year. A first-year hop typically throws up two to four thin bines, climbs perhaps eight to twelve feet (2.4 to 3.6 m), and produces either no cones or a token handful. This is not failure. The plant is spending the season building a crown and a deep root system underground, and that investment is what pays out later.
The crop builds over three to four seasons. Year two usually gives a real but light picking; by years three and four the crown is mature and a single healthy plant will give you a full harvest every year and keep doing so for a decade or more. Judge a young hop by the thickness of its bines and the vigor of its regrowth, not by its cone count.
Water regularly through that first summer, since the root system is still shallow, and keep the ground around the plant free of weeds and grass, which compete hard at this stage. A two-inch (5 cm) mulch of compost helps on both counts, but keep it pulled back an inch or two from the crown itself so the emerging shoots are not sitting in wet material.
Write down the planting date, the exact position of each crown, and which plant is which. Hops all look identical once they are climbing, the labels weather away, and in three years you will want to know which crown is the one worth dividing.