Northern Gold Forsythia. Northern gold forsythia is a multi stemmed deciduous shrub with an upright spreading habit of growth. Forsythia are fast growing shrubs that can grow up to 10 feet 3 m tall and just as wide.
Pruning forsythia is essential to control this growth. I do have to trim it once per year to keep it in bounds but no more than that. When to prune forsythia.
A very hardy strain.
This title has resulted from its beautiful golden yellow flowers that bloom in the early spring season followed by an ethereal display of dark green foliage. Forsythia are fast growing shrubs that can grow up to 10 feet 3 m tall and just as wide. Flower bud hardiest of forsythia developed by agriculture canada. Forsythia northern gold is a modern hybrid selected for reliable bud hardiness to 30 degrees f.