General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 8b
Plant Height: 2 to 3 feet
Plant Spread: 4 to 7 feet
Leaves: Deciduous
Flowers: Showy
Blooms on old wood
Flower Color: Yellow
Flower Time: Late winter or early spring
Pollinators: Various insects
Miscellaneous: Tolerates poor soil

Common names
  • Border Forsythia

  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Apr 11, 2019 2:01 PM concerning plant:
    This low growing shrub is not used as much as it used to be in 1960's into the 1990's in the Midwest and East USA, but it is still offered by some conventional and mail order nurseries. It forms a high groundcover of arching stems that hit the ground and root. I don't recommend it as it gets to be a messy tangle of stems as time goes on. It usually does not bloom well with its pale yellow or greenish-yellow flowers. It has no real fall colour. It was developed by Dr. Sax at the Arnold Arboretum in 1941 from a cross between the Border Forsythia (F. x intermedia X the Japanese Forsythia (F. japonica saxatilis).

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