Propagating lilacs is an easy process, and there are a few different ways that one can go about it. It is generally about three years before lilacs are able to create blooms once they have been planted in a region. Most lilacs are purchased from garden supply stored, and are already grown for a few seasons. In these cases, it may take fewer years to see the lovely blooms.

Propagating lilacs in a home garden can be a fun and rewarding experience.   A second way of propagating lilacs is to grow them from small shoots taken from an existing plant. Shoots that are one or two feet tall should be selected for best results. The plant should be dug up deeply, to ensure that as much of the root system is removed as possible. The root system should be strong and full before this type of propagating lilacs can be attempted. The main root should be attached to the mother plant, and clippers should be used to cut the selected shoot from the main bush. The new shoot can then be planted in the desired location. This should be done in a time of colder weather, to increase the survival rate. Three to five shoots should be planted in each area for this type of propagating lilacs to work best.

Propagating lilacs can also be done from seed, although this is an uncommon way. After the growing season, the seeds can be harvested from the dead flowers. This should be done once the flowers have dried out, but before they fall out of the seedpods. Propagating lilacs from seed takes time and patience. It may take up to five or six years for the first bloom to appear. This is one of the reasons that propagating lilacs from seed is not as common as other approaches.   Propagating lilacs from seed is most commonly left to horticulturalists and garden centers or nurseries. When propagating lilacs from seed, the blooms can be cross-pollinated manually, to create new and exciting hybrids. This will take many years to accomplish, but is well worth the wait for the gardener who is getting tired of the same routine year after year in the garden.