Priority: - Control
Tags: Agricultural | Terrestrial
Identification and Reproduction
- Hops is also known as common hop, it is a perennial, herbaeous climbing plant.
- Stems are green, branching and have downward-pointing hairs that allow it to grab and climb other objects.
- It can climb up to 10 m high and can live up to 20 years.
- Leaves have 3-5 deep lobes with pointed tips. Underside of leaves are covered in soft hairs.
- Flowers appear from July to August and seeds will ripen in September and October.
- Female flowers appear as thread-like spikes that are green to yellow. Male flowers are found in branching clusters with each individual flower composed of 5 spreading sepals.
- Seeds are found singularly encased in cone-like bracts.
- Reproduces by seed.
- Plants will die back every winter and survive as perennial roots. In the spring it will send up new shoots.
- Can regrow from root fragments from the main crown.
Habitat & Ecology
- Hops grows well in sites with full sun, with moderate amounts of precipitation.
- It thrives in well-draining, moist and rich soil.
- This plant can cause dermatitis with skin contact.
- Dislodged hairs from the plant have also been known to irritate eyes.
- Its scientific name lupulus, is Latin for small wolf, which is in reference to this plant's ability to strangle other surrounding plants.
- A fast and aggressive grower, hops will take over space very quickly.
- Remove before seeds have set to prevent re-establishment.
- Wear gloves, long sleeves and pants when working on hops to prevent dermatitis.
- Cut climbing vines, gently remove and unwind from objects or other plants.
- If possible dig up the roots but refrain from fragmenting runners (stolons that "run" above ground). Any pieces left on site may regrow.
- Once plant has been removed it is reccommended to replant or mulch the area to suppress hops regrowth.
For more information on how to identify common hops check out E-flora BC's data page on Humulus lupulus here.
Header photo (Dr. Hagen Graebner).