Plant guide
Tamanu.
Calophyllum inophyllum
Pronounced ka-lo-FIL-um in-oh-FIL-um
Also known as Alexandrian Laurel, Alexandrian-laurel, Beach Calophyllum, Beautyleaf, Borneo Mahogany, Borneo-mahogany, Indian doomba oiltree, Indian-laurel
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The tamanu tree is a beautiful, slow growing evergreen known for its glossy, dark green leaves and fragrant white flowers. It thrives in coastal areas and is highly valued for the rich oil extracted from its seeds. It makes a lovely ornamental tree if you have the space for its wide, spreading canopy.

At a glance
- Care level
- Moderate
- Plant type
- Evergreen tree
- Light
- Full sun
- Indoor light
- Direct sun
- Water
- Every 7 to 14 days
- Mature size
- 20 to 30 meters
- Growth rate
- Slow
- Hardiness
- USDA 10 to 12
- Bloom time
- Intermittent throughout the year
Care
This tree prefers well draining soil and plenty of sun to stay healthy. Watch for yellowing leaves which may indicate poor drainage or overwatering. Keep an eye out for common pests like scale or aphids during the warmer months.
- Watering
- Water deeply once the top few inches of soil feel dry to the touch.
- Feeding
- Apply a balanced fertilizer during the active growing season.
- Pruning
- Prune lightly once a year to maintain shape and remove dead branches.
- Repotting
- Repot only when the tree has clearly outgrown its current container.
- Soil
- Sandy, well draining soil
- Soil pH
- 6.0 to 7.5
- Temperature
- 10 to 35°C
- Humidity
- 60 to 90%
- Drought tolerance
- Moderate
- Lifespan
- Long lived perennial tree.
- Fragrance
- Strong
- Deer and rabbits
- Moderate
Signs it needs repotting
- Roots growing out of drainage holes.
- Stunted growth despite proper care.
Safety
- People
- All parts of the plant are considered toxic if ingested, especially the seeds.
- Pets
- The seeds and oil are considered toxic if ingested by cats or dogs.
- Children
- Keep children away from the fruit and seeds as they are poisonous if swallowed.
- Contact allergens
- The sap can cause skin irritation in sensitive individuals.
- Airborne allergens
- There is no significant evidence of airborne allergens.
- Edibility
- The seeds contain toxic compounds and should never be consumed.
How to identify it
- Glossy, leathery, dark green leaves
- Fragrant white flowers with yellow centers
- Large, round, green fruit
- Spreading, irregular canopy shape
- Deeply fissured, dark gray bark
- Height
- 8 to 20m
- Spread
- 6 to 15m
- Leaves
- dark green, glossy, evergreen
- Flowers
- white, 2 to 3cm
- Fruit
- green, brown, Year round
Problems to watch for
- Scale InsectsCommon
- Leaf SpotUncommon
- Sooty MoldUncommon
- Root RotRare
Check your tamanu from a photo
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Growing it
- Propagation
- seed, cuttings
- When to plant
- spring, summer
- Overwintering
- Protect from frost at all costs as it is strictly a tropical plant.
- In containers
- Not suitable for long term container growth due to its massive size.
Seed
- 1. Collect mature brown fruit.
- 2. Remove the fleshy outer layer.
- 3. Plant in moist sandy soil.
- 4. Keep warm until germination.
Plant in areas with well draining soil to prevent root rot.
Grows well with
- Coconut Palm · They share similar coastal environmental requirements.
- Sea Grape · Both are excellent for stabilizing sandy coastal soils.
Similar species
- Calophyllum brasiliense · A related species with similar growth habits.
Science
- Family
- Calophyllaceae
- Genus
- Calophyllum
- Order
- Malpighiales
- Class
- Magnoliopsida
- Native range
- Tropical regions of Asia, Africa, and the Pacific Islands.
- Conservation
- This species is not currently listed as endangered.
It is a salt tolerant tree that naturally stabilizes sandy coastal dunes.
- Value to wildlife
- provides nesting habitat, nectar source
- Pollinators
- bees, butterflies
- Uses
- ornamental shade tree, coastal erosion control, oil production, timber
Through the year
Ecological indicators
- Salinity
- 8/9
- Soil reaction
- 7/9
- Light
- 8/9
- Temperature
- 9/9
- Moisture
- 6/9
- Nutrients
- 5/9
Taxonomy resolved against GBIF.
Questions people ask
- Can I grow this in a pot?
- It is generally too large for long term container growth.
- Does it need full sun?
- Yes, it performs best in full sun exposure.
Where the name comes from
The name Calophyllum comes from Greek words meaning beautiful leaf, while inophyllum refers to its leaf veins.
Good to know
- It is often called the Alexandrian laurel.
- The wood is highly valued for boat building due to its resistance to rot.
- It thrives in salty coastal environments.
- The flowers are quite fragrant.
Also in
Keep your tamanu growing
This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.
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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.
