The fall blooming ligustrum varieties include the deciduous privet, Ligustrum quihoui, which blooms with white flower heads in late summer to early fall in August and September. The shrub has a mature height of about 8 feet and is cited as the queen of flowering privets in "The Flowering Shrub Expert" by D. G. Hessayon. The Japanese privet, Ligustrum japonicum, also produces flowers from late summer onwards. Ligustrum lucidum is an evergreen large shrub or small tree that produces large clusters of white flowers during fall.
Privets tolerate a wide range of well-drained soil types depending on variety. This includes loam, sand or clay. Privets also adapt well to acidic or alkaline soils. The plants have a moderate tolerance for drought and a high level of tolerance for salt. Privets grow well in areas of full to partial sun and require regular pruning in order to develop a strong structure.
Privets are easy to propagate with a variety of methods including seed, cuttings or grafting. The use of cutting and grafting ensures the production of new plants with similar flowering and growth traits as the mother plant. Use either softwood or hardwood cuttings from active growing stems for best results and allow up to eight weeks for cuttings to root. When using fresh seeds, remove the pulp from around the seed and plant before the seed is completely dry.
Privets are highly prone to infestation from sap-sucking pests such as scales, aphids, spidermites and whiteflies, which are attracted to the blooms and foliage. Sap-sucking pests suck plant juices, causing foliage to start curling and new shoots to die back. Check the undersides of the foliage for pests and use recommended insecticides after the new growth has had a chance to harden or mature. Repeat application after 10 to 14 days.