Transplant outside
Strongly prefers a deep in-ground bed; containers restrict the root crown and reduce yield significantly after year one. In containers: 25-gallon or larger half-barrel; expect reduced yield. Space plants 36 inches (90 cm) apart.
A vigorous perennial climbing bine grown for its papery, aromatic cone-shaped flowers used in brewing and herbal preparations.
Humulus lupulus · also called common hops, bine
Windows are counted from the average date of your last spring frost.
Home brewers gain access to fresh, varietal hops unavailable in most shops. The plant also provides rapid seasonal screening — a mature crown can send shoots 20 feet or more in a single season.
A little history. A dioecious (separate male and female plants) perennial; only female plants produce cones. Commercially grown plants are all female, propagated by rhizome division to keep populations seedless.
Strongly prefers a deep in-ground bed; containers restrict the root crown and reduce yield significantly after year one. In containers: 25-gallon or larger half-barrel; expect reduced yield. Space plants 36 inches (90 cm) apart.
Deep soak twice a week during active growth; reduce to once a week once cones begin to form. Water when the top 2 inches of soil feel dry. Aim for about 1–2 inches per week including rain.
Side-dress (scatter fertilizer along the row and water in) once in early spring when shoots emerge, then again at 6 weeks. What to use: balanced 10–10-10 or compost-enriched organic blend; avoid high nitrogen after midsummer.
Train 2–3 strongest shoots per string upward; cut all others at ground level in early spring. Pinch (remove the growing tip) lateral shoots below 18 inches to improve airflow and direct energy to upper cones.
It's ready when cones feel dry and papery, spring back when squeezed, and release a strong resinous aroma when rubbed. The base of each cone turns slightly yellow-green. Lupulin (yellow powder inside) is visible when a cone is split open. Cut entire bine (the twining stem of a hop plant, distinct from a tendril-climbing vine) down from its support. Strip cones by hand into a breathable bag. Harvest the whole plant at once — cones on a single bine ripen within a narrow window.
Dry cones in a single layer at 140 °F (60 °C) or below until moisture drops to about 8–10%; vacuum-seal in airtight bags and freeze. Use within 12 months for best brewing quality.
Crown is fully dormant and cold-hardy once top growth dies back. Mulch with 3–4 inches of straw after cutting bines to the ground. Remove mulch gradually in spring as shoots emerge to avoid smothering new growth.
Comfrey
Comfrey's deep taproot works well below the hop crown's feeding roots, so the two share the same permanent bed without fighting for water. Cut comfrey leaves several times a season and lay them over the crown as a mulch.
Yarrow
Yarrow's flat flower heads draw in hoverflies, lacewings, ladybugs, and tiny parasitic wasps, the same predators that clear hop aphid colonies off young shoots. Plant it at the base of the trellis where it flowers through the aphid season.
French Marigold
French marigold can reduce root-knot nematodes in the soil, but only when sown thickly across the whole area or turned into the ground at season's end — a few flowers at the bed edge do nothing. Best used the year before a hop crown goes in.
Fennel
Fennel roots release compounds that stunt most garden plants nearby, and a hop crown sits in the same spot for a decade. Keep fennel in its own corner well away from the trellis, where its flowers still feed hoverflies and tiny parasitic wasps.
A perennial — it holds its spot for years, so it sits outside the annual rotation.
Hops is a long-lived perennial that holds one bed for ten years or more, so it takes no place in an annual rotation — rotate yearly vegetables around the crown instead. If wilt has struck, wait at least 4 years before replanting hops in that ground.