A link to a good article about the right way to deal with your forsythia.Why, oh why do people take hedge trimmers to every bush in their yards every fall?
Here’s the rule for spring flowering shrubs like Forsythia: They bloom on the new growth from the previous year. Trim them after they bloom in the spring and then leave them alone! If the landscaper does a ‘fall cleanup’ don’t let him near the forsythia. So whet if they don’t look like a green ball? They spread out a little. That’s their nature. Respect it.