Japanese privet
Ligustrum japonicum · Oleaceae
Japanese privet (Ligustrum japonicum) is a perennial shrub in the Oleaceae family. It is introduced to North America rather than native. USDA records it as hardy in zone 5 and warmer, down to about -13°F.
⚠ Invasive or noxious status. USDA lists this plant with an invasive or noxious weed status somewhere in its range. Check your state's noxious weed list before planting it — in some states it is illegal to sell or plant.
Both flags are quoted from USDA PLANTS, not inferred.
At a glance
| Type | shrub USDA |
|---|---|
| Lifecycle | perennial USDA |
| Native status | introduced USDA |
| Mature height | 10 ft USDA |
| Light | shade USDA |
| Water need | low USDA |
| Growth rate | rapid USDA |
| Soil pH | 5.5–6.9 USDA |
| Bloom | June–August USDA |
| Flower color | White USDA |
| Hardiness zones | 5 and warmer USDA |
| Guild layer | shrub Derived |
| Nursery availability | Routinely Available USDA |
USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.
Growing conditions
It tolerates full shade. USDA rates it as having low water needs once established. It is recorded on soils from pH 5.5 to 6.9 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 5; USDA publishes no warm-end limit, so gardeners in warmer zones should check local heat tolerance separately.
Size and growth
At maturity it reaches about 10 ft, making it a mid-sized plant. It grows quickly, which matters when you are timing a planting around the layers above it.
Bloom period
USDA records a bloom period of June through August. The flower color USDA records is white. Bloom timing is how the Guild Builder overlaps flowering across a planting so something is in flower for as much of the season as possible.
Bloom period is a claim about when this plant flowers. It is deliberately not a pollinator rating — no dataset we trust publishes one, so we do not make that claim. See Data & sources.
Role in a guild
Shrub layer. In a layered planting this is woody mid-level structure between the understory and the ground. We derive the layer from the plant's growth habit and mature height using a fixed rule, so the same inputs always produce the same layer.
Tags
Related plants
Others in Ligustrum
- Amur privet Ligustrum amurense
- California privet Ligustrum ovalifolium
- European privet Ligustrum vulgare
Similar role and hardiness
- basin big sagebrush Artemisia tridentata
- bladder senna Colutea arborescens
- Scotch broom Cytisus scoparius
- woolly beachheather Hudsonia tomentosa
- Japanese holly Ilex crenata
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol LIJA, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.
bloom_end— quoted from USDA PLANTSbloom_start— quoted from USDA PLANTScommercial_availability— quoted from USDA PLANTSduration— quoted from USDA PLANTSflower_color— quoted from USDA PLANTSgrowth_habit— quoted from USDA PLANTSgrowth_rate— quoted from USDA PLANTSguild_role— derived by rule from USDA columnsinvasive_caution— quoted from USDA PLANTSmature_height_ft— quoted from USDA PLANTSmoisture— quoted from USDA PLANTSnative_status— quoted from USDA PLANTSnitrogen_fixer— quoted from USDA PLANTSpet_safe— quoted from USDA PLANTSph_max— quoted from USDA PLANTSph_min— quoted from USDA PLANTSshade_tolerance— quoted from USDA PLANTStemperature_min_f— quoted from USDA PLANTSzone_min— quoted from USDA PLANTS
Read our full data sources and methodology.
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