Mollison has said: Permaculture is a philosophy of working with, rather than against nature; of protracted and thoughtful observation rather than protracted and thoughtless labour; and of looking at plants and animals in all their functions, rather than treating any area as a single product system..
The juice of jewelweed is a traditional remedy for all sorts of skin ailments including poison ivy. An oft-repeated folk saying, Wherever poison ivy is found, jewelweed grows close by. To use it, you can simply crush the leaves and rub it on the itchy places.
All parts of poison-hemlock (leaves, stem, fruit, and root) are poisonous. Leaves are especially poisonous in the spring, up to the time the plant flowers. Fresh leaves are unpalatable, so livestock seldom eat hemlock when other feed is available.