Forsythias are a genus of deciduous flowering shrubs that belong to the olive family. These low-maintenance, fast-growing shrubs feature an upright, arching form and are known for their long branches that fill with brilliant yellow blooms early in the spring.Planting- Water before planting; Plant in full sun to part shade; Dig hole 3X the width of pot; Backfill and plant 1-2 above soil level; Water and add more soil if needed; Mulch plants