Medically reviewed by Beth Thomas, PharmD Key Takeaways Never take comfrey by mouth because it can cause severe health ...

Elizabeth has worked since 2010 as a writer and consultant covering gardening, permaculture, and sustainable living. She has also written a number of books and e-books on gardens and gardening. Haley ...

Comfrey (Symphytum officinale) is a hardy perennial wildflower that thrives along riverbanks and in grasslands. Blooming in late spring and summer, its flowers attract bees making it a beneficial ...