Uses: Also known as self-heal, this herb has been used for a wide variety of issues for centuries. It can be applied externally to help heal cold sores and other herpes outbreaks, as well as wounds, ulcers and toe fungus. It can also be taken internally to assist with allergies, digestive disorders and even diabetes. The entire plant is edible and you can add it to foods or make it into tea. To use it on cold sores or wounds, simply crush fresh leaves and apply directly to your skin.
Hardiness: USDA Zone 3.
Growing Tips: Heal-all grows best in cool to moderate temperatures and partial shade. It can spread vigorously, so plant it along an edge of concrete or in a pot to help contain it. Heal-all blooms with attractive white or lavender spikes during summer. Keeping it deadheaded will help encourage blooming and prevent self-seeding.