You’ll know your forsythia has died when all of the flowers are gone. Find out if you should cut your forsythia back to the ground once it has died with help from a Utah-certified nursery professional in this free video clip. Expert: Donna Emery Filmmaker: Jeff Goodey Series Description: How you will go about planting depends largely on what you’re planting in the first place. Get tips on planting with help from a Utah-certified nursery professional in this free video series.