College of Agriculture, Health and Natural Resources

Plant Database

Forsythia suspensa var. sieboldii

Weeping Forsythia

Oleaceae

Weeping ForsythiaWeeping ForsythiaWeeping Forsythia
Expand

Habitat

  • native to China
  • zone 5

Habit and Form

  • a deciduous shrub
  • 8' to 10' tall and 10' to 15' wide
  • distinctly weeping habit with fine, arching and trailing branches

Summer Foliage

  • opposite leaf arrangement
  • leaves are mostly simple, but vigorous shoots develop trifoliate or 3-lobed or 2-lobed leaves
  • simple leaves are wedge-shaped, 2" to 4" long and 1" to 2" wide
  • leaf color is medium to dark green

Autumn Foliage

  • yellow-green

Flowers

  • yellow and 4-lobed
  • 1" to 1.25" across
  • in groups of 1 to 3 usually
  • blooms in March and April
  • doesn't bloom as heavily as F. x intermedia

Fruit

  • inconspicuous brown capsule

Bark

  • yellowish-brown color
  • most stems are slender, so bark is not of ornamental importance
  • prominent lenticels

Culture

  • adaptable to many soils
  • easily transplanted and established
  • full sun is best, but partial shade is tolerated with reduced blooming
  • tolerant of urban conditions

Landscape Use

  • most appropriately used on banks or over walls
  • must cascade to be at its best in the landscape
  • useful as a barrier
  • for erosion control on slopes

Liabilities

  • flower buds only cold hardy to -10 to -15oF while plant is hardy to -20 to -25oF
  • flower bud kill occurs regularly above the snow line in zones 4 and 5
  • long trailing branches can consume nearby plants that are too close

ID Features

  • four-lobed yellow flowers in spring
  • fine, cascading branches
  • simple and trifoliate leaves are often present
  • prominent stem lenticels
  • pith solid at the nodes and hollow in the internode regions
  • decurrent lines conspicuous on stems

Propagation

  • easy by cuttings
  • layers readily

Cultivars/Varieties

  • none of importance

© Copyright Mark H. Brand, 1997-2015.

The digital materials (images and text) available from the UConn Plant Database are protected by copyright. Public use via the Internet for non-profit and educational purposes is permitted. Use of the materials for profit is prohibited.

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