Shrub · Oleaceae

Privet

Ligustrum vulgare

A forgiving, fast-growing hedge that shears into almost any shape, though it wanders out of the garden and can harm grazing animals.

Light

Full sun

Water

Every 7–⁠14 days

Hardiness

USDA 4–⁠8

Mature size

10–⁠15 ft · 3–⁠4.6 m

Toxic to cats, dogs, horses & more
Privet

Overview

If you have never planted a hedge before, privet is a kind place to start. This member of the olive family grows fast and thick, and it forgives the ragged early cuts that make new gardeners nervous. It leafs out early, holds its small oval leaves well into the season, and lifts spikes of white flowers in late spring before setting clusters of dark berries. Being cheap, quick, and easygoing, it rewards you long before you feel like an expert.

The one thing to hold in mind is that all that eagerness has a downside. Birds eat the berries and carry the seed out into woods and along field edges, where privet builds dense thickets that crowd out native plants. Several kinds are listed or regulated as invasive, and common privet counts as a significant threat in some regions, so a little care about where you put it goes a long way.

It also carries poison, and that is worth knowing without any panic. The leaves and above all the berries hold compounds that are toxic to pets, livestock, and people, so choose its spot thoughtfully, shear it before the fruit forms, and keep it clear of animals that graze. Do that, and privet stays the generous, low-worry shrub it is meant to be.

Care

The short version: give privet full sun to part shade in any soil that drains, keep new shrubs watered until they root and then relax about it, and shear it to shape in late spring once the flowers have gone by.

Light

Privet fills in thickest in full sun, yet it settles happily into partial sun or partial shade too. The more light it gets, the tighter and fuller your hedge, while deep shade thins it out and opens gaps that take patience to close.

Water

Water new plantings faithfully until the roots catch hold, then you can ease right off, because a settled privet copes with moist to occasionally dry soil on its own. Let the top half of the soil dry between waterings, about every 7 to 14 days as it finds its feet.

Soil

Almost any ground makes privet happy, whether clay, loam, or sand, as long as water can drain away. A pH anywhere from 6.0 to 7.5 suits it, and that covers most ordinary garden soil, so there is little to fuss over here.

Temperature

Privet is a tough, cold-hardy shrub that shrugs off winters down near -29°F (-34°C) and summer heat as high as 100°F (38°C). That generous range is a big reason it feels at home in so many climates, and it takes one more worry off your plate.

Humidity

Everyday outdoor air is all privet asks, so there is no reading to chase. What helps far more is steady air movement, since a crowded, still hedge invites leaf spot and mildew.

Feeding

In decent soil privet gets by with no feeding at all, which is one less chore for you. If the growth ever looks thin, a balanced granular fertilizer in spring is plenty, and going heavier only forces soft shoots that pests love.

Pruning

Pruning is where privet truly shines, since it takes hard shearing without sulking. Shape it as a hedge in late spring once the flowers fade, or clip it again and again through the season, and trimming before the fruit sets helps keep its seed from traveling.

Repotting

Privet almost never lives in a pot, so repotting rarely comes up. If you do keep one contained, simply move it up a size when roots circle the pot or slip out the drainage holes and water begins running straight through.

Size & spacing

Given its head, privet climbs to 10 to 15 feet (3 to 4.5 m) tall and spreads 8 to 15 feet (2.4 to 4.5 m) wide. For a solid hedge, tuck the plants closer than that full spread and shear them into one continuous green wall.

When to plant

Privet keeps its timing simple. Put new plants in the ground in spring or fall while the soil still works easily, look for the white flowers around June, and shear it into shape once blooming winds down, ideally before the berries form and scatter.

Northern hemisphere

Plant Mar–May
Bloom Jun
Plant Sep–Oct

Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.

  • Plant: Spring or fall
  • Harvest: White flowers in late spring to early summer (around June)

Hardiness

USDA hardiness zones: 4–8

Temperature: down to -34°C

Troubleshooting

Take heart, since privet is genuinely hard to kill and most trouble looks worse than it is. You will usually see marked or nibbled leaves and a scattering of sap-feeding bugs, none of which threaten the shrub, while root rot in soggy ground is the lone problem serious enough to end one. Find your symptom below and step in early, and the plant bounces back with ease.

Severe

A whole shrub wilting and yellowing in wet ground

When a normally sturdy privet flags and pales, look to root rot in soil that stays wet. Dig a little and you will meet dark, mushy, rotting roots sitting in waterlogged earth. Improve the drainage and stop overwatering, though a badly hit plant is usually beyond rescue and better replaced somewhere drier.

Fix:

  • Improve drainage and stop overwatering
  • Remove severely affected plants
  • Replant in well-drained soil
Setback

Spotted leaves, dying twigs, and sunken bark lesions

Dark blotches, blighted twigs, and sunken stem sores usually point to anthracnose or twig blight, while a pale, powdery film on the leaves is powdery mildew. Cut out and burn the infected wood, then open up the canopy so air can flow through. Water low at the base and gather up fallen leaves, and you will keep the spores from settling back in.

Fix:

  • Prune out and destroy infected twigs and branches
  • Improve air circulation by thinning the canopy
  • Avoid overhead watering and clean up fallen leaves
Cosmetic

White waxy bugs and a sticky film across the leaves

Those cottony white specks and the tacky sheen usually mean whiteflies or white peach scale sipping the sap. Knock the whiteflies off with a firm spray of water, then coat the undersides of the leaves with horticultural oil or insecticidal soap. Keep at it until the sticky honeydew and the black sooty mold fade, and the shrub carries on unbothered.

Fix:

  • Spray foliage with a strong jet of water to dislodge whiteflies
  • Apply horticultural oil or insecticidal soap, coating undersides of leaves
  • Repeat applications per label until populations decline
Cosmetic

Nibbled leaf edges and growth that lacks spark

Those scalloped notches around the leaf edges are the calling card of a weevil, either the ligustrum or Japanese sort, feeding after dark while its larvae gnaw at the roots below. Shake the adults onto a cloth first thing in the morning, and only reach for a labeled insecticide if the damage turns heavy. A well-watered, healthy privet takes this cosmetic chewing in stride.

Fix:

  • Handpick or shake adults onto a cloth in early morning
  • Apply a labeled insecticide if damage is heavy
  • Maintain plant vigor with proper watering

Toxicity

Please treat every part of privet as poisonous, and let that guide where you plant it rather than frighten you. The leaves and the dark berries carry cardiac glycosides, saponins, and protoanemonin, and the berries hold the most danger. Swallowing them brings on vomiting and diarrhea, with lost coordination and heart effects after a bigger dose, and it can kill horses and other livestock. Keep the berries and prunings out of reach of animals and small children.

Toxic to

Cats · Dogs · Horses · Rabbits · Livestock · Birds · People

Cats Mild

A cat that samples the leaves or berries tends to drool, lose interest in food, and get an upset, loose stomach. Most cases stay gentle, but the dark berries hold the most toxin, so keep an inquisitive cat away from them.

Dogs Mild

Dogs usually answer with drooling, a sore belly, and loose stools, and may seem flat or sleepy afterward. The common way they get into trouble is gulping a pile of dropped berries or fresh clippings.

Horses Severe

Privet is rough on horses, so stay alert. Watch for colic, a painful gut, drooling, and a dull, wobbly animal, and remember that a big feed of leaves or berries can kill. Treat any suspected case as an emergency.

Rabbits Toxic

The same glycosides that harm other animals make privet unsafe for rabbits, stirring up gut upset and low energy. Never hand them the leaves or berries, not even a nibble.

Livestock Severe

Cattle, goats, and sheep can take real gut distress and colic from the foliage and fruit, and a heavier feed turns deadly. Fence privet away from pasture and bin the prunings rather than dropping them where animals graze.

Birds Toxic

Wild birds gulp the berries whole and pass the seed unharmed, which is exactly how privet gets around, but the leaves and fruit are not fit food for pet birds. Keep cage birds well clear of any trimmings.

People Caution

No part of privet belongs on a plate. The berries are the main hazard, and eating them can bring on vomiting and diarrhea, with unsteadiness and heart effects after a larger dose. Keep the berries out of the reach of small children.

Keep berries and prunings away from pets and grazing animals; clip flower panicles before berries form to limit fruit on the plant.

Helpline numbers

United States

ASPCA Animal Poison Control: (888) 426-4435 (fee applies)

Poison Control: (800) 222-1222

United Kingdom

Animal PoisonLine: 01202 509000 (fee applies)

NHS: 111

Australia

Animal Poisons Helpline: 1300 869 738

Poisons Information Centre: 13 11 26

Canada

Poison Centres: 1-844-764-7669

Varieties

Privet is really a family of close cousins, from shrubs to small trees, and the ones you will run into most are loved for quick hedging or cheerful leaf color, even when they carry a worrying habit of spreading.

Ligustrum sinense (Chinese privet)

A semi-evergreen hedging privet that has turned badly invasive across the eastern and southern US, raising thick thickets from bird-sown seed.

Ligustrum japonicum (Japanese / wax-leaf privet)

A warm-climate favorite whose large, glossy, thick evergreen leaves win it fans, though it too has slipped into the wild across parts of the southern US.

Ligustrum lucidum (glossy privet)

A tree-sized glossy privet named a noxious weed in California and running loose through much of the South.

Ligustrum × vicaryi (golden privet)

Grown for its bright golden-yellow leaves, which take on their richest color in full sun.

How to propagate

One of the joys and cautions of privet is how readily it makes more of itself, from cuttings, from seed, and from stems that root on their own, which is the very reason it travels so freely once it slips the garden.

Stem cuttingsEasy

Softwood cuttings in late spring/early summer or hardwood cuttings in late fall to winter · 4 to 8 weeks to root

Privet roots from cuttings almost before you ask it to. Take softwood cuttings in late spring or early summer, or hardwood cuttings from late fall into winter, and they set roots in 4 to 8 weeks. That very willingness is much of why the shrub establishes so aggressively out in the wild.

SeedEasy

From ripe black berries in fall · Germinates readily; seed is abundantly bird-dispersed

The ripe black berries of fall are packed with seed that sprouts with little fuss. Privet self-sows freely and birds fling that seed far and wide, which is the main engine of its invasiveness. Snipping the flowers before fruit forms is your surest way to hold volunteers down.

LayeringEasy

Spring through summer · Several weeks to months

Low branches root wherever they lean on the soil, taking anywhere from several weeks to a few months to anchor. The shrub throws up suckers as well, so a single privet can quietly widen its footprint on its own.

Myths

Myth

Privet is a harmless ornamental you can safely plant anywhere.

Reality

Privet rarely stays put. Birds carry its seed deep into woods and along field margins, where it raises dense thickets that smother native growth, and several kinds are listed or regulated as noxious weeds. Check your local rules first, and give a native hedge a serious look instead.

Myth

Privet berries must be safe since birds happily eat them.

Reality

Birds digest the fruit without trouble and scatter the seed everywhere, but that tells you nothing about other creatures. The berries and leaves are toxic to pets and livestock, carrying cardiac glycosides, saponins, and protoanemonin that birds simply handle.

Sources