Plumeria Tri Colour

Tri Colour Frangipani

Botanical Name: Plumeria rubra 'Tri Colour'
Family: Apocynaceae
Origin: Tropical Americas (cultivar selection)
Plant Type: Deciduous small tree

Overview

One of the most eye-catching frangipani cultivars available, Plumeria rubra 'Tri Colour' produces stunning multicoloured blooms in a captivating blend of pink, lemon and white — each flower a swirl of tropical colour that looks almost too beautiful to be real. Combined with the legendary heady fragrance of frangipani, this is a plant that engages all the senses through summer and into autumn.
Like all frangipanis, 'Tri Colour' is deciduous, dropping its leaves in winter before bursting back into lush growth each spring. It thrives in Adelaide's hot, dry summers and performs beautifully in large containers, giving you the flexibility to bring it under cover during cold snaps. A show-stopping specimen for tropical, alfresco and Mediterranean-style gardens.

Key Features

• Mature Size: 2.5–4.0 m H × 2.0–3.0 m W (spreading vase form; smaller and more compact in containers)
• Growth Rate: 20–40 cm per year in a warm, sunny position
• Foliage: Large, lance-shaped dark green leaves clustered at branch tips; fully deciduous in winter; fresh green growth re-emerges in spring
• Flowers: Large, waxy, 5-petalled blooms in blended shades of pink, lemon and white; produced in terminal clusters; summer through autumn
• Fragrance: Strongly fragrant — classic sweet tropical frangipani scent with hints of jasmine, citrus and gardenia; intensifies in the evening
• Seasonal Interest: Lush dark green foliage from spring → multicoloured fragrant flowers summer through autumn → leaves drop in winter revealing sculptural bare branches → new growth and buds emerge in spring
• Wildlife Value: Flowers attract bees and butterflies; nectar-seeking honeyeaters visit in warm months
• Tolerance: Drought-tolerant once established; heat-tolerant; frost-sensitive — protect from frost and cold winds; keep dry during winter dormancy; dislikes waterlogged soils
• Planting Density: Plant as a single specimen; 2.5–3.0 m spacing for group plantings; ideal in large containers (50 cm+)
• Pet Friendly: Toxic if ingested — sap is a skin and eye irritant; keep away from pets and children

Where It Works Best

• Sunlight: Full sun to part shade — minimum 6 hours of direct sun daily for reliable flowering
• Soil: Free-draining sandy or loamy soils; excellent drainage is critical — will not tolerate wet feet; add coarse grit or sand to heavy Adelaide soils if needed
• Water Needs: Establishment: water regularly through first summer. Established: deep soak every 10–14 days in summer; reduce significantly in autumn; stop watering through winter dormancy when leafless
• Maintenance: Prune lightly in early spring to shape before new growth; avoid heavy pruning as flowers form at branch tips; feed with a balanced or high-phosphorus fertiliser in spring and summer; stop feeding in autumn; move potted plants under cover when temperatures drop below 5°C
• Lifespan: Long-lived; decades in frost-free or well-protected positions
• Climate Zones: Best in warm, frost-free microclimates — coastal Adelaide, northern suburbs, sheltered courtyards; grow in pots in cooler foothills areas for easy frost protection
• Soil pH: Neutral to slightly acidic; adaptable to Adelaide's range of soil types with good drainage

Landscape & Design Ideas

• Showstopping specimen tree for tropical, alfresco or Mediterranean courtyard gardens where its multicoloured blooms and fragrance can be fully appreciated
• Grow in a large statement pot on a sunny patio or deck — move under cover in winter for frost protection
• Pair with Bougainvillea, Bird of Paradise, Agapanthus and ornamental grasses for a bold, exotic summer display
• Plant against a north or west-facing wall to maximise warmth, reflect heat and provide natural frost shelter
• Feature tree for poolside or entertaining areas where its evening fragrance creates an unforgettable atmosphere

Why You Will Love It

'Tri Colour' is pure summer theatre. The blended pink, lemon and white blooms are genuinely unlike anything else in the garden, and the intoxicating frangipani fragrance on a warm Adelaide evening is an experience in itself. Heat-loving, drought-tough and spectacular in full flower — this is the plant that will stop guests in their tracks every single time.