Japanese Honeysuckle

Danelle HaakeLitzsinger Road Ecology CenterMay 17, 2012

(Lonicera japonica)

History Native to Japan and Korea Horticultural Introduction (early 1800s)

Ornamental Erosion Control Wildlife (deer and birds)

Lonicera japonica

Habitat & Distribution Woodlands Prairies Edges

Lonicera japonica

Characteristics & Identification

Woody vine Climbing Ground cover

Lonicera japonica

Characteristics & Identification

Opposite leaves and branches Entire margins Some leaves

lobed

Lonicera japonica

Feb 24

May 10

Characteristics & Identification

Flowers April to July White to yellow Very fragrant

Fruit Single berries Green (unripe) to

black (ripe)

Lonicera japonica

Spread Animal-dispersed

seeds Rooting at nodes

Lonicera japonica

Harmful Effects Girdling of trees

and shrubs Long leaf-on

period

Lonicera japonica

Control Foliar spray

1.5-3% glyphosate Fall application

Cut-and-paint 25% glyphosate Remove climbing

vines Fire

Limits spread, but does not eliminate

Hand pull

Lonicera japonica

Before & After

Lonicera japonica

Before & After

Lonicera japonica

References James Miller. Non-Native Invasive Plants of Southern

Forests. USDA Report SRS-62, 2007. Shaw Nature Reserve. Control and Identification of

Invasive Species. SNR, 2008.

Plant Conservation Alliance, Alien Plant Working Group: www.nps.gov/plants/alien/fact/pdf/loja1.pdf

USDA PLANTS Database: plants.usda.gov/java/profile?symbol=LOJA

Missouri Department of Conservation: mdc.mo.gov/landwater-care/invasive-species-management/invasive-plant-management/japanese-honeysuckle-control

Lonicera japonica