how to start lilac bush from cutting
Step 4. Water each container thoroughly to settle the potting mixture around the lilac cuttings. Place each container in a zip-lock bag, and place the containers in indirect light. Avoid putting the lilac cuttings directly in a sunny window, because the sunlight magnified through the plastic will bake the cuttings.trip the leaves from the lower half of the stem cutting. Dip the cut end in powdered rooting hormone. Fill several 4-inch containers with a mixture of 1/2 perlite and 1/2 peat moss. Plant a lilac cutting in each container, with the bare stem approximately 3 inches deep in the soil.