No need to 'chuck' living things out, I am unsure if you have town gardens shearme, if so then poke a finger in a soft spot in the street garden and let it grow..easy. Oh I know HBL, Any section of the stem has fibrous roots, very fine but they will happily root..made loads of plants like that, same with Begonias. Remember the nice pink/cerisey Seedum I showed you in the summer? I planted two clumps in a pot and next season they will gladly have produced two beauties ready to plant out. Never done the leaf only.I have made two Jades easily though from one small plant given to me last summer.