Tiare

Sun

Full sun to partial shade; provide afternoon shade in very hot inland gardens and bright light indoors.

Water

Keep evenly moist during active growth, allowing the surface to dry slightly between waterings. Water less in winter, but do not let the root ball dry out completely.

Soil

Fertile, moisture-retentive but well-drained soil, preferably slightly acidic to neutral. Use a free-draining container mix rather than garden soil in pots.

Height

4-10 ft (1.2-3 m)

Spread

4-8 ft (1.2-2.4 m)

Flowers

Fragrant white flowers, mainly from late spring through autumn; flowering can continue intermittently throughout the year in tropical climates.

Foliage

Evergreen. Broad, glossy, leathery green leaves carried in opposite pairs or small whorls.

Growth

Moderate in warm conditions; slow in cool weather.

Care needed

Medium

• Pollinators
• Heat tolerant
• Low allergen
• Fragrant

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Hard

Toughness

Needs looking after

Pick your zone, country, light and whether you have pets.

1. Planting day

   1.6 ft (0.5 m)

2. After 1 year

   2.4 ft (0.75 m)

3. After 2 years

   3 ft (0.99 m)

4. After 3 years

   4 ft (1.2 m)

5. After 5 years

   6 ft (1.7 m)

About 7 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Mildly toxic: may upset a stomach

Growth rate

Slow

• Water deeply when the soil surface begins to dry, and empty container saucers after watering.
• Feed lightly with a gardenia or flowering-shrub fertiliser during spring and summer, following the label rate.
• Spread organic mulch over the root zone, keeping it clear of the stems.
• Move containers under warm, bright cover before nights regularly fall below 50°F (10°C); protect from all frost.
• Keep indoor plants away from heating vents and provide good airflow without cold draughts.

Pruning. Lightly shorten long shoots after a main flush of flowers to maintain a rounded shape. Remove dead or damaged branches as needed, and avoid repeated shearing, which removes developing flower buds.

Spring

Check roots and repot container plants if crowded; begin light feeding as new growth starts.

Late spring

Move overwintered plants outdoors once nights remain above 50°F (10°C), introducing stronger sunlight gradually.

Summer

Check soil moisture frequently, especially in containers, and inspect leaf undersides for pests.

Late summer

Lightly prune after a flowering flush and take semi-ripe cuttings.

Autumn

Bring containers under warm cover before cold nights arrive and stop routine feeding as growth slows.

Winter

Provide the brightest available sheltered position and reduce watering without letting roots become completely dry.

• Plant beside a terrace or entrance where the flower scent can be enjoyed at close range.
• Use as an informal evergreen hedge in frost-free gardens.
• Grow in a large container as a seasonal focal point on a sunny patio.
• Combine with palms and broad-leaved tropical plants for contrasting leaf shapes.
• Include in a white-flowered courtyard or evening garden, where the blooms stand out against dark foliage.

Garden styles it suits: Tropical, Modern tropical, Luxury resort, Sensory garden, White garden and Hawaiian.

Plant it with: Hibiscus, Ixora, Cordyline, Dwarf mondo grass, Bromeliads and Areca palm.

Wildlife: The flowers can attract nectar-feeding insects, including moths, where suitable pollinators occur. Its wildlife value varies with location, and it is not a substitute for locally native planting.

• Yellow leaves with green veins: check drainage and soil pH before feeding; use chelated iron if iron deficiency is confirmed.
• Scale insects or mealybugs: inspect stems and leaf undersides, remove small infestations by hand, and use a labelled horticultural oil or insecticidal soap if needed.
• Spider mites indoors: look for fine webbing and stippled leaves; rinse foliage thoroughly and treat persistent infestations with insecticidal soap.
• Bud drop or root rot: avoid abrupt changes in temperature and moisture, keep roots out of standing water, and protect plants from cold.

Species-specific toxicity information is limited. Other gardenias are toxic to cats, dogs and horses, usually causing mild digestive upset after ingestion; keep tiare leaves, flowers and any fruit out of their reach. Human poisoning risk is not well established, so do not assume ornamental plant parts are edible.

• Cape jasmine (Gardenia jasminoides)

  Usually has smaller leaves and flowers with broader, overlapping petals; many garden forms have double flowers rather than tiare's open, pinwheel-shaped blooms.

• Crape jasmine (Tabernaemontana divaricata)

  Its flowers usually have five distinctly twisted lobes and occur in clusters; damaged stems release milky sap.

• Frangipani (Plumeria rubra)

  Has thick, succulent branches and much larger leaves crowded near branch tips; flowers have five broad, waxy petals, often with yellow centres.

Gardenia honours the physician and botanist Alexander Garden, taitensis refers to Tahiti, and tiare is the Tahitian word for flower.

Propagation. Take semi-ripe stem cuttings in summer and root them in a clean, free-draining medium with warmth and high humidity. Seed is less commonly available and produces variable plants.

Accepted botanical name

Gardenia taitensis

In the US and Canada

Introduced in Hawaii.

Native range

Fiji, Niue, Samoa, Tonga, Vanuatu and Wallis-Futuna Is..

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.