I have a very tall plant, which is about 7 ft tall, when the blooms die off, can I cut it down to a sensible height or will this kill it?

I have a very tall plant of verbena bonariensis, which is about 7 ft+ tall, when the blooms die off, can I cut it down to a sensible height or will this kill it?

Re: I have a very tall plant, which is about 7 ft tall, when the blooms die off, can I cut it down to a sensible height or will this kill it?

Reply from Carol

It shouldn't kill it. The plant is perennial and will die back naturally and resprout next year. Trimming to a sensible size usualy keeps it in shape. What does the database say about how to care for this plant?