Comfrey, True (Symphytum officinalis) Family: Borage (Boraginacea) Herbaceous perennial native to Europe and hardy to - 15 degrees F. Multi-purpose healing, permaculture and animal food plant. True comfrey is the original medicinal herb as detailed in all the ancient literature. Vivid purple, dangling flowers. Sow the large, shiny seeds just under the surface and tamp in securely. Keep warm and moist until germination, which occurs in about 10 days. Grow the seedlings out in pots for about 3 months, then transplant outdoors. You can also direct-seed into a fertile bed in the late summer or spring. 10 seeds/pkt, organic.