Japanese mock orange

Pittosporum tobira (Thunb.) W.T.Aiton

light
Sun–part
water
Medium
tall
3.2 m
wide
2.0 m

Pittosporaceae

Also called Japanese cheesewood, Japanese pittosporum, Mock orange, Japanese mock-orange, Cheesewood

Formerly Euonymus tobira

When it flowers

Not known yet in the tropics: too few flowering observations to read a season from.

Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.

PetsNC State Extension lists it as non-toxic to dogs, cats and horses (28 Oct 2026)
PeopleNo safety information yet

If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.

Something wrong with it?

About it

Grows as
ShrubKew's checklist, not yet checked
Climate
SubtropicalKew's checklist, not yet checked
Wild in
S. Korea, SC. & S. Japan to Nansei-shotōKew's checklist, not yet checked
Light
Full sun to part shade (3 h or more)Read from RHS and NC State Extension, not yet checkedBacked by both sources. Sources differ: RHS full, part; NC State Extension full, part, shade. Checker: NC State Extension page does not state full, part, shade: lists only full sun and partial shade
Height
2.5 m to 4.0 mRead from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS 2.5–4 m; NC State Extension 8–13 ft
Spread
1.5 m to 2.4 mRead from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS 1.5–2.5 m; NC State Extension 4–8 ft
Water
Average: moist, well drainedRead from RHS and NC State Extension, not yet checked: its sources are splitTied: no reading has a majority of the 2 sources, so all are kept for a person to settle. Sources differ: RHS medium; NC State Extension low
Flowers
YellowRead from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS white, yellow; NC State Extension cream, yellow
Coldest it survives
-8.6 °C (USDA zone 8b)Read from RHS and NC State Extension, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS -5 °C; NC State Extension -12.2 °C

Not known yet: heat, hottest it survives.

In other languages (12)

Spanish
Clavo verde asiático, Azarero asiático
Portuguese
Pitósporo-da-china, pitósporo-chinês, Faia-do-Norte
Chinese
海桐, 海桐花, 海桐枝叶
Italian
Pittosporo
Japanese
トベラ
French
Pittospore du japon
Estonian
jaapani vaiguseemnik
German
Chinesischer Klebsame
Czech
slizoplod tobira
Russian
Питтоспорум Тобира
Catalan
Pitòspor
Greek
Αγγελικούλα

Where this comes from

A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.