Perennial, hardy in zones 3-8, common comfrey has been used for centuries. It has purple, rose or white flowers. The leaves are traditionally used as a topical to treat wounds and reduce pain in cuts and scratches. I have used the dried leaves as a bath tea to soothe skin tears.
Comfrey is also an excellent plant for increasing nitrogen in your soil, but it is also highly invasive and difficult to eliminate once established in your garden. Treat it like mint, something that must be continually managed and best kept in raised beds or planters.
Minimum of 10 seeds per packet.
Planting Depth: 1/4 inch
Plant Spacing: 2-3 feet
This is a difficult plant to grow. Start indoors 3 months before transplant date. Increase germination by cold stratification: plant seeds in moist soil, cover with plastic wrap or place inside a ziplock and leave in the fridge for 20-60 days. Once out of the fridge place in a warm area for germination, with soil temperatures between 68-80 degrees F. Transplant outside anytime after the last frost.