Outsidepride Comfrey Herb Seeds - 200 seeds Comfrey is a perennial herb plant grown in USDA Zones 4 - 9 as a perennial. This is a popular herb that has many medicinal uses. Latin name Symphytum officinale, grows to be approximately 60 inches tall. It has slender lance-shaped leaves and produces bell-shaped purple flowers that bloom from May to September. It may have violet, pink or creamy yellow flowers. Comfrey plants are excellent in compost and are useful for organic gardening practices. Plant 1 - 2 of these heirloom, non gmo seeds to begin growing your plants today.