Common Hop (Humulus lupulus)

How much light does a Common Hop need?

Outdoors, common hop needs six or more hours of direct sun each day for best growth. It also tolerates part shade, so a site with some afternoon shade still works. Full sun is the preferred choice, with partial shade listed as an accepted option too.

• Light: Full sun and part shade (full sun preferred)^1,2

How often to water a Common Hop

Keep the soil consistently moist from spring through fall for steady growth. This plant needs a medium, steady level of water rather than long dry spells or heavy soaking. The soil itself can handle some wet spells, since it is rated as tolerating occasionally wet conditions alongside good drainage.

• Water: Medium³

Best soil for a Common Hop

Plant common hop in soil that drains well but still holds some moisture. The roots tolerate occasional wet spells, but they do best when water does not sit for long. Aim for a soil pH between 6.0 and 6.5, which is on the slightly acidic side. The soil itself should stay lightly moist rather than fully dry or fully wet.

• Soil drainage: Well drained, moist and occasionally wet^1,2
• Soil pH: pH 6–6.5⁴

Hardiness and temperature

USDA hardiness zones 5a through 8b mark the outdoor range for common hop. Zone 5a marks the coldest part of that range. Zone 8b marks the warmest part of that range. No cited source gives a minimum winter temperature for this plant. Within this hardiness range, the vine puts on growth at a rapid pace each year. Its full growing range spans four zone numbers, from zone 5 to zone 8. Across these zones, give it full sun to part shade for the best results.

• Hardiness: Zones 5a–8b¹

Fertilizing a Common Hop

This vine is a heavy feeder that needs regular nitrogen through its growing season. Split your applications, since extension research recommends feeding it in two rounds about 30 to 45 days after new growth emerges. That timing falls in late spring and continues into early summer.

• Fertilizer: Heavy feeder (May–Jul)⁴

Pruning a Common Hop

Prune common hop back hard in early spring, cutting the vine down to the soil surface. This type of cut is known as hard renewal pruning. You can also use lighter shaping cuts during the season to guide the vine's growth.

• Pruning: Hard renewal pruning and Light shaping (Apr)³

How to plant a Common Hop

Zones 5a through 8b suit common hop best for growing outdoors year after year. In zone 5a, winters run colder, while zone 8b marks the mild, warm edge of its range. Give each plant room to spread, since mature vines reach 3 to 6 ft (0.9 to 1.8 m) wide. Space plants with that mature width in mind so the vines have room to climb and spread. Choose a planting site within your zone range before the growing season gets underway.

• Hardiness: Zones 5a–8b¹

Winter care

Winter hardiness for common hop runs from USDA zone 5a to zone 8b. Zone 5a is colder than zone 8b, the mild end of its range. No cited source gives a minimum winter temperature for this plant. Growers cut the vine back hard to the soil surface each spring after winter dormancy. Rhizome division also happens in winter, while the plant stays dormant. Its hardiness spans four zone numbers, from zone 5 to zone 8. Choose a site within this zone range for the vine to survive outdoors.

• Hardiness: Zones 5a–8b¹

How to propagate a Common Hop

Growers propagate common hop from seed, stem cuttings, or root divisions. Seed is one option listed for starting new plants. Division works by digging up and separating the rhizomes during winter dormancy, as extension guidance recommends. Stem cuttings offer a third route for gardeners who already have an established vine to take cuttings from.

• Propagation: Seed, stem cuttings and division^1,3

Common problems

Watch for aphids, leafhoppers, spider mites, and Japanese beetles on common hop. Spider mites cause white speckling, bronzing, and leaf drop when populations build up. Downy mildew is the most serious disease reported on this crop. Powdery mildew and a cone disorder tied to Alternaria fungi are also documented problems.

• Common pests: aphids, leafhoppers, spider mites and japanese beetles⁵
• Common diseases: downy mildew, powdery mildew and alternaria cone disorder⁴

Questions and answers

Is common hop toxic to dogs?

Yes, the ASPCA lists common hop as toxic to dogs, and Pet Poison Helpline reports that dogs can develop a rapid, life-threatening fever after eating used brewing hops. If your dog eats any part of this plant, contact your vet or a pet poison line right away.

Is common hop toxic to cats?

No cited source lists common hop's toxicity to cats, so that risk is not documented. The ASPCA entry found for this plant covers dogs only. Since the known risk applies to dogs, it is a good idea to keep hop plants away from all pets.

How much sun does common hop need?

Common hop grows best in full sun, meaning six or more hours of direct light a day. It also tolerates part shade if full sun is not available.