False Spirea Containment

Question

Hello, I read your article on growing false spirea as I had planted one last year and just now noticed the suckering.. it’s spreading fast! It is planted in a large raised bed in the centre of my front lawn, which is composed of deep landscape bricks so I’d estimate about half a foot tall. My question is will the suckering be contained within the raised bed, or is it going to sucker right under the bed and end up in my lawn?

Answer 1

You can stop the spread by pulling up the suckers as you see them. You also can cut it to the ground every year. If you don't, I'm sure they will manage to sucker under the bricks.
https://www.gardeningknowhow.com/ornamental/shrubs/false-spirea/how-to-grow-false-spirea.htm