(1)cut the leaf close to the base & retain the stem (2) apply 0.1% IBA Rooting houmone to stem at base of leaf,(3) Use well drained soil... stick stem in soil so that the base of the leaf touches the soil AND the leaf is sticking up in the air & the bulk of the leaf is not touching the soil (4)heep soil damp but not wet.... mist leaf, keep out of direct sunlight, keep out of draft.
(5) at some time if leaf does not dehydrate a new plant will form at point where leaf meets soil. let it grow & months (?) (6) later may seporate from leaf.