This plant is a Comfrey, Symphytum officinale, which I have planted in the garden for at least 7 years. This photo is from May 2017.
The flowers are very pretty. I took the photo when I arrived at the country house from Madrid: you can see how everything is weed, although it is always like this!
Here you see it whole. I dedicate. Very affectionate greetings from Margarita.