Plant Profile: Lonicera japonica

Japanese Honeysuckle is a vigorous, deciduous to semi-evergreen vine, particularly in southern regions, that can grow between 16 to 29.5 feet. This rampant climber is challenging to manage and can easily overtake other plants, potentially smothering them. It poses a threat to native flora by competing aggressively for essential resources such as light, space, water, and nutrients. The vine can either climb and twine or spread out as a ground cover, propagating through both rhizomes and above-ground runners, while its seeds are widely dispersed by birds and small mammals that consume the berries.

To prevent its spread, it is advisable to keep this plant away from landscaped areas. The honeysuckle blooms from late spring to fall, producing highly fragrant flowers. Its dark green leaves often display a lobed shape early in the season. This plant thrives in wet conditions and is known for its rapid, invasive growth.

According to NC State Weed Specialist, it is classified as highly invasive. While the flowers are sweet and edible, caution is advised; do not consume flowers from other honeysuckle varieties. Eating large quantities of the berries can lead to illness, potentially resulting in a coma.