Kathy, you are not speaking of borage. I am positive you are speaking of Comfrey, the cousin to Borage. The flowers are nearly the same, the plants similar, but one is perennial, that be the Comfrey and one is annual, heavy duty self-seeders, Borage.
You say that it comes up every year, yes, comfrey does do that. YOu can cut and dig and cut and dig this plant til the cow's come home. It will only get bigger and bigger and every tiny little bit of root that has been trashed to somewhere else or left in the ground will start new plants everywhere. The mother plant gets about 7 feet tall, and hundreds and hundreds of drooping flowers of that electric midnight blue in colour shade. Let me tell you, I know about comfrey, just ask.
The bombus love comfrey, I have never ever seen a honeybee on it, the flowers are too deep, and they can't get the nectar. I cut mine back about 3 times during the summer because it gets so big that I can't stand it. It keeps on blooming and blooming because of the cutting back. I literally rip the leaves out until there is only a small little bit of leaf. In a couple of weeks the plant is as big as it was when I ripped it out. I am going to find a couple of pictures and post them here for you. Look and see, you will see that your Borage, I am positive is Comfrey. An invasive species, through the root system, as Borage with the self-sowed seeds can also be invasive.
I have borage coming up EVERYWHERE, even where the sun don't shine, it is amazing stuff, but greater than great for the bees. Have that most beautiful and wonderful day, Cindi
This is the mother plant that I cut back and dig back so hard every year, trying to keep it under control, but yep, yep, good luck with that one!!!!
The beautiful drooping flowers:
And oh the bumblebees have their day, the pollen is bright orange and heavy duty stuff!!!!