- Size: 8'H x 8'W.
Hardiness: zone 5 to 7.
Upright, spreading, slightly arching branches.
yellow flowers engulf the stems in early spring.
Description: The hardiest
forsythia for northern areas, after witchhazels these are the first plants to
bloom, adapts to all types of soil conditions and pH ranges, withstands urban
conditions and is free of pests and diseases.