Forsythia x intermedia
1-3 years old, 8-12 inches tall.
If planting to create a hedge, it is best to space the shrubs about 4-6 feet apart. Forsythia grows to 8-10 feet tall and 10-12 feet wide at maturity.
Full sun and partial shade are best (meaning at least 4 hours of direct, unfiltered light per day).
The forsythia grows in acidic, alkaline, loamy, moist, rich, sandy, silty loam and well-drained soil.