Lonicera japonica

Japanese Honeysuckle

Caprifoliaceae

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Habitat

  • native to eastern Asia
  • hardy to zone 5
  • this species is widely naturalized in the United States
  • Special Note: This species has demonstrated an invasive tendency in Connecticut, meaning it may escape from cultivation and naturalize in minimally managed areas. For more information, .

Habit and Form

  • a twining, climbing vine or prostrate and trailing groundcover
  • semievergreen
  • tends to be a weedy and rampant grower
  • can spread or climb 15' to 30' feet
  • as groundcover, it usually doesn't get much over 2' tall

Summer Foliage

  • opposite, simple leaves
  • evergreen, semievergreen, or deciduous, depending on the climate
  • leaf shape is ovate
  • leaves are 1.25" to 3.25" long
  • leaf color is a dark, lustrous green
  • young leaves and stems are pubescent

Autumn Foliage

  • leaves turn a bronze or purple

Flowers

  • flowers are white and fade to yellow
  • bloom time is mid-June
  • flowers are fragrant
  • relatively showy in full bloom

Fruit

  • small, black fruit
  • not really of any ornamental significance

Bark

  • stems are slender, so bark is not ornamentally important

Culture

  • easy to grow
  • full sun to partial shade
  • tolerant of difficult growing sites
  • adaptable to most soils

Landscape Use

  • barrier
  • erosion control
  • screen
  • groundcover
  • useful on banks
  • difficult sites
  • for fragrance of flowers

Liabilities

  • a rampant and weedy grower needing to be contained in some circumstances
  • not evergreen in zones 6 or colder

ID Features

  • a twining vine or groundcover
  • stems pubescent
  • evergreen or semievergreen tendencies
  • flowers white, fading to yellow
  • flowers fragrant

Propagation

  • by cuttings

Cultivars/Varieties

'Aureoreticulata' - This is a novelty form with a yellow netted pattern on its leaves that is most pronounced in full sun. It is less vigorous than the species. Overall, it appears diseased or sick. 'Tricolor' is another variegated form with multi-colored foliage mottled pink, white, cream, green, etc.

'Halliana' (known commonly as "Hall's Honeysuckle") - Similar overall to the species, this selection has flowers that rapidly change to yellow after opening and are quite fragrant. Similar is 'Halliana Prolific' (also known as 'Hall's Prolific') which supposedly grows even more vigorously to 20' and has profuse flower set.

'Purpurea' - Very commonly offered, this plant offers purple-tinted deep green foliage. The flowers are reddish on the outside.

© Copyright Mark H. Brand, 1997-2015.

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Citation and Acknowledgements: University of Connecticut Plant Database, http://hort.uconn.edu/plants, Mark H. Brand, Department of Plant Science and Landscape Architecture, Storrs, CT 06269-4067 USA.