Honeysuckles (Lonicera; syn. Caprifolium Mill.) are arching shrubs or twining vines in the family Caprifoliaceae, native to the Northern Hemisphere. There are about 180 species of honeysuckle. Widely known species include Lonicera periclymenum (European Honeysuckle or Woodbine), Lonicera japonica (Japanese Honeysuckle, White Honeysuckle, or Chinese Honeysuckle) and Lonicera sempervirens (Coral Honeysuckle, Trumpet Honeysuckle, or Woodbine Honeysuckle). Hummingbirds are attracted to these plants.
The leaves are opposite, simple oval, 1–10 cm long; most are deciduous but some are evergreen. Many of the species have sweetly-scented, bell-shaped flowers that produce a sweet, edible nectar. Breaking of the Honeysuckle's stem will release this powerful sweet odor. The fruit is a red, blue or black berry containing several seeds; in most species the berries are mildly poisonous, but a few (notably Lonicera caerulea) have edible berries. The plant is eaten by the larvae of some Lepidoptera species - see list of Lepidoptera that feed on honeysuckles.
Wood cuttings from the species Lonicera tartarica, native to Eurasia, are sold as cat toys. The wood contains nepetalactone, which is the active ingredient found in catnip. Many breeds of cats react to the scent of the wood and will paw, lick or rub against it.
Honeysuckles grow best in partial sun to partial shade.
Lonicera japonica and Lonicera maackii (Amur Honeysuckle or Bush Honeysuckle) are considered invasive weeds in the United States and in New Zealand. Honeysuckle can be controlled by cutting, flaming, or burning the plant to root level and repeating on two-week increments until nutrient reserves in the roots are depleted. Honeysuckle can also be controlled through annual applications of glyphosate, or thorough grubbing if high labor and soil destruction are not of concern.
Honeysuckle is also edible; removing the blossom, one may suck at the sweet nectar in the center.
Cordage made from honeysuckle was used in the construction of Seahenge.
Honeysuckle flowers can be used to flavor wine, syrup, sorbet, and other sweet dishes.
Another name for honeysuckle is woodbine; and eglantine is used in Milton's L'Allegro.