Does anyone know what plant this is?
It is about to get pink flowers
Certified GKH Gardening Expert
That appears to be Foxglove (Digitalis). This article will give you more information: https://www.gardeningknowhow.com/ornamental/flowers/foxglove/foxglove-flowers.htm
Thanks very much @BushDoctor, I thought it might be, but the pictures I found online did not show the foliage & the few that did, did not look like mine. It is many years since I had any Foxgloves, I wonder where this one came from, a nice surprise. :)))