Japanese honeysuckle, scientific name Lonicera japonica, is native to Japan and Korea. It was imported to the United States as an ornamental garden plant but since has escaped to become an invasive weed. It is banned in four states.
Japanese honeysuckle is pollinated by hummingbirds and insects. In its native habitat it is pollinated by nocturnal hawkmoths, which are attracted by its sweet nectar.
Flowers and Seeds
The tube-shaped flowers, which bloom from spring through summer, are prolific and when pollinated produce shiny black berries. The seeds are spread by birds eating the berries.
Seedlings take three to five years to mature into a flowering plant. They are slow growers at first and do not tolerate overshading or any type of drought conditions.
Mature plants can become up to 30-foot-long vines that climb trees and other structures for support. The leaves are evergreen in warmer climates but become deciduous or semi-evergreen in northern cooler climates.
Japanese honeysuckle can also reproduce by layering, which is when a node on a vine touches the ground and takes root, creating a new plant.
- SPECIES: Lonicera japonica
- Japanese Honeysuckle
- Weed of the Week: Japanese Honeysuckle
- USDA: Japanese Honeysuckle
invasive honeysuckle, honeysuckle berries, honeysuckle pollination
About this Author
Brian Albert has been in the publishing industry since 1999. He is an expert in horticulture, with a focus on aquatics and tropical plants like orchids. He has successfully run an aquatic plant business for over five years. Albert's writing experience includes the Greater Portland Aquarium Society newsletter and politics coverage for a variety of online journals.