I grow a number of medicinal herbs in my outdoor garden. The two I'll show today are Frostweed (Verbesina virginica) and Jamaican Leaf of Life (Bryophyllum calycinum and pinnatum):
The Leaf of Life propagates the way the Mother of Millions does- from nodes in the leaves themselves. Just throw a leaf on the ground and watch roots sprout and tiny plantlets grow. In tropical zones, the Leaf of Life is lively indeed! My herbalism teacher gave me one leaf a few years ago, and now I have over 20 plants!