The conventional ways to propagate and create new plant life are to either take cuttings, divide plants, or collect seeds from your existing collection.
But these methods don't suit all greenery, which is why when looking closely at a magnolia, rhododendron or apple tree, you might see a mysterious bag-like appendage attached high up on the trunk or to a thick branch. This is air layering propagation at work, where the mature tree or plant is cloned from a stem that is still attached to it.
