I love this herb, its called comfrey. Russian comfrey to be exact. It bushes out at the bottom and makes a nice clump. Then the flower spikes grow another foot or 2 taller. I have used this plant as a hedge around an herb bed before.
Has anyone ever used lovage? This herb is the PERENIAL answer to celery. It grows as a big clump and then the flower spikes grow to 8 feet tall. The flowers look like the wild carrot flowers that are blooming now along the roadsides. The lovage leaves are great to use for celery flavor in soups and dips and on sandwiches. Sometimes fresh herbs are too strong to eat whole leaves but not lovage. If you use the leaves in soup, you have to add the leaves towards the end of the cooking time, otherwise the flavor cooks away. The stems are real thick and hollow, they make great straws (especially in Bloody Marys). This spring I didn't have a chance to pot any babies to sell----but----its not too late yet. I am going to transplant this big plant soon and will pot some up then.