Privet Care: Fast Hedge Shrub With Real Tradeoffs
Privet (Ligustrum spp.) makes a fast, dense hedge in zones 4–10, but most species are invasive across the eastern U.S. — this guide covers the invasiveness tradeoffs, legal status by region, and the care that keeps a privet hedge looking intentional rather than unmanaged.
Privet species
Several Ligustrum species are sold in North America, and they differ in cold hardiness and invasiveness.
Common privet (Ligustrum vulgare)
Semi-evergreen to deciduous depending on winter severity. Hardy in zones 4–8. Per Penn State Extension, "common privet is the most cold-hardy of the commercially available privets and was widely planted in northern gardens for its fast growth and dense hedge habit." Clusters of white flowers in June are fragrant to some people and unpleasant to others — the scent is described as both sweet and heavy. Dark berries follow and are toxic to humans and some animals.
Japanese privet (Ligustrum japonicum)
Evergreen, 6–12 feet, hardy in zones 7b–10. Per UF IFAS Gardening Solutions, Japanese privet is "the most widely planted privet in the South, used as hedges, screens, and foundation plants across the Gulf Coast and Florida." It thrives in heat and humidity that damages common privet. Listed as invasive in multiple southeastern states.
Chinese privet (Ligustrum sinense)
The most aggressively invasive privet in the eastern U.S. Per University of Minnesota Extension and numerous state extension publications, Chinese privet "has escaped cultivation across the Southeast and mid-Atlantic and now ranks as one of the most problematic invasive shrubs in eastern forests." It spreads prolifically by bird-dispersed seed. Per Clemson HGIC, Chinese privet is "listed as a federal noxious weed and is regulated or prohibited in several southeastern states — growers should not plant it."
Amur privet (Ligustrum amurense)
The hardiest species, reaching zone 3–4. Per UMN Extension, Amur privet is "the most cold-hardy privet available in commerce and is used for hedges in the upper Midwest where common privet is unreliable." Considered less invasive than common or Chinese privet in cold climates because it produces fewer viable seeds in short northern growing seasons.