holly osmanthus
Osmanthus heterophyllus · Oleaceae
holly osmanthus (Osmanthus heterophyllus) is catalogued by the USDA PLANTS database. USDA records it as hardy in zone 6 and warmer, down to about -3°F.
At a glance
| Mature height | 15 ft USDA |
|---|---|
| Light | part-shade USDA |
| Water need | medium USDA |
| Growth rate | moderate USDA |
| Soil pH | 5–6.5 USDA |
| Bloom | September–November USDA |
| Flower color | White USDA |
| Hardiness zones | 6 and warmer USDA |
| Nursery availability | No Known Source 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 grows in partial shade. USDA rates it as having moderate water needs. Its drought tolerance is rated low. It handles periodically wet ground (USDA rates its anaerobic tolerance medium). It is recorded on soils from pH 5 to 6.5 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 6.
Size and growth
At maturity it reaches about 15 ft, making it a small tree or large shrub. It grows at a moderate rate.
Bloom period
USDA records a bloom period of September through November. Flowers are white.
A flowering date, not a pollinator rating.
Foliage, flower and season
Summer foliage is green, medium in texture. Its flowers are conspicuous. It carries conspicuous autumn colour. Its active growth period is spring and summer. Its winter foliage is dense, which makes it useful for year-round screening. USDA rates its lifespan as moderate.
What the site needs to provide
USDA records it across sites receiving 32 to 60 inches of annual precipitation. It needs at least 180 frost-free days to finish its season. It roots to at least 16 inches. Fertility requirement: medium.
Propagating it
Propagate it from cuttings, bare root and container stock.
Resilience and wildlife
Its fire tolerance is rated medium, and it can resprout after damage. Its growth form is recorded as multiple stem.
Tags
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol OSHE, 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.
- Quoted from USDA PLANTS: active growth period, Bloom, Bloom end, cold stratification, Drought tolerance, fall conspicuous, fertility requirement, fire tolerance, Flower color, flower conspicuous, foliage color, foliage porosity winter, foliage texture, frost free days min, fruit conspicuous, growth form, Growth rate, Hardiness zones, lifespan, Light, Mature height, Minimum temperature, Nitrogen fixation, Nursery availability, precipitation max in, precipitation min in, propagation, resprout ability, root depth in, seed spread rate, Soil pH, Soil pH (upper), Tolerance of wet soil, Toxicity, Water need.
Read our full data sources and methodology.
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