Medically reviewed by Beth Thomas, PharmD Key Takeaways Talk to a provider about using topical comfrey to heal wounds or ease ...

Master Gardener: Of all the herbs, comfrey has the most outstanding record of being considered a near “cure all” herb.

I planted three root cuttings on May 1. Because Comfrey can grow five feet tall and four feet wide in Zones 4-9, I chose garden locations where plantings were sparse.

Lars H. Kruse, Thomas Stegemann, Christian Sievert, Dietrich Ober, Identification of a Second Site of Pyrrolizidine Alkaloid Biosynthesis in Comfrey to Boost Plant Defense in Floral Stage, Plant ...