Boone County Arboretum
9190 Camp Ernst Road
Union, Kentucky 41091
Phone: (859) 384-4999
Fax: (859) 384-6888
arboretum@boonecountyky.org

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Cultural Details for Forsythia x intermedia 'Spring Glory'

Common Name:
Spring Glory Forsythia

Growth Rate:
Fast

Average Mature Height:
10'

Average Mature Width:
10-12'

Flower Details:
Perfect, 1.25-1.5" long, sulfur-yellow flowers. Borne in 2’s and 3’s on old wood, usually March-April for 2 to 3 weeks.

Fruit Details:
Two-celled, dehiscent, brown capsule, 0.33" long, often housing many winged seeds. Not ornamental.

Fall Color:
Variable from year to year, Usually green or yellow-green, sometimes with a tinge of purple; leaves hold late (November) and may turn a deep burgundy.

Bark Details:
Stems often somewhat squarish or 4-sided, yellowish brown and strongly lenticellate.

Disease / Insect Problems or Resistance:
None serious, but can find crown gall, leaf spots, dieback, four-lined plant bug, Japanese weevil, northern root-knot nematode and spider mites.

Native Habitat:

Other Features:
Early spring color is usually excellent, but can be injured by late freezes reducing flower quality. Great for a shrub border, massing, groupings, or bank plantings. This cultivar flowers earlier and more uniformly in Zone 7 and 8

Culture and Care:
Prefers a good, loose soil but will do well in about any soil. Withstands city conditions and pH adaptable. Plant in full sun to maximize flower. Will sucker (slowly) to form large colonies. Prune after flowering by cutting to ground or removing old stems

This plant was blooming:
3/29/2010 - 4/14/2010
3/26/2007 - 4/5/2007

Plantings of this cultivar at Boone County Arboretum:
Bed 157

    The information on this page may have come from one or more of the following sources:
  • Dirr, Michael. Manual of Woody Landscape Plants. Stipes Publishing. 1998.
  • Hightshoe, Gary L. Native Trees, Shrubs, and Vines for Urban and Rural America. John Wiley & Sons. 1988.
  • North Carolina Extension Plant Fact Sheets. www.ces.ncsu.edu
  • University of Connecticut Plant Database. www.hort.uconn.edu