Do you know what type of verbena you have, Gayle?It's hard to imagine one overpowering a nandina, but you can certainly cut it back significantly.
Don't know. Low to the ground and spreading all over. Beautiful purple. I thought since the Nandina looked shrubby the Verbena may be choking it out. I'd like to move it.
It is probably 'Homestead Purple' and I doubt you will hurt it by moving it. You might want to cut it back to a manageable size before you do so, and make sure to keep it well-watered after you do .
Thank you, Douglas
You're welcome, Gayle.