Forsythia × intermedia
Border Forsythia

Forsythia × intermedia - Overall Shrub in Fall
 Family:
 Genus:
 Plant Type:
 Growth Forms:
 Hardiness:
 Deciduous / Evergreen:
 Flower Notes:
Yellow (Lovely, 4-petaled, bright yellow flowers (1.25-1.5" across) in early to mid spring; flowers killed by -10 to 15 degrees F)
 Foliage Notes:
Green (Summer foliage); Yellow (Generally poor yellow-green to purple tinged in the fall)
 Fruit Notes:
Brown (Capsule; not ornamentally important)
 Ultimate Height:
8-10 feet
 Ultimate Spread:
10-12 feet
 Light Requirements:
 Soil Notes:
Quite adaptable to soil type
 Diagnostic Characteristics:
Leaves (3-5" long by 1.5-2.5" wide) are opposite, simple, and entire near base and toothed near tip. Flowers form in leaf axils. Multiple buds at nodes. Four-sided, greenish-brown stems having chambered pith and solid pith at nodes (Forsythia suspensa has hollow internodes).
  Special Characteristics:
  • Flowering Characteristics 353
  • Border 368
  • Groupings 189
  • Mass Plantings 268
  • Screen 171
  • Specimen 598
  • Fast Growth Rate 225
  • Pollution Tolerant 217

    • Additional Information

    The most showy forsythia cultivars are found in this vigorous and adaptable hybrid species. Cut stems excised in mid-winter will flower indoors due to very short chilling requirement. Hardy to USDA Zone 4 for vegetative parts and USDA 5(6) for flowers. Flower buds are killed by severe winters in zone 5, and frequently in colder zones. Plants, however, are hardy in Zone 4. Too big for most foundations and small border plantings (Don't Shear!). Remove old wood for best appearance.

    11 Forsythia × intermedia found

    Building Map...

    = Heritage plant = Memorial plant
    Number Accession ID Location
    12010_04556*ASCPA
    22010_04558*ASCPA
    32010_12893*AHILL
    42010_11804*APRSV
    52010_08798*AAERO
    62010_11806*APRSV
    72010_12894*AHILL
    82010_08797*AAERO
    92010_04557*ASCPA
    102010_04559*ASCPA
    112010_11805*APRSV

    Other plants like this Forsythia × intermedia (Border Forsythia)

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