Plumeria Red

Red Frangipani / Common Frangipani

Botanical Name: Plumeria rubra
Family: Apocynaceae
Origin: Tropical Americas (Mexico, Central America, Venezuela)
Plant Type: Deciduous small tree / large shrub

Overview

Bring classic tropical beauty to Adelaide and South Australian gardens with this iconic red-flowering frangipani. Plumeria rubra forms a spreading, vase-shaped frame with fleshy succulent branches that leaf out in late spring and carries masses of richly perfumed, vibrant pink to red flowers with yellow centers through summer and early autumn. The most widely grown frangipani species—national flower of Nicaragua—it delivers timeless tropical elegance with intoxicating fragrance. It loves heat, needs sharp drainage, and excels in warm microclimates, sunny courtyards and coastal suburbs.

Key Features

• Mature Size: 3–5 m H × 3–4 m W in Adelaide climate (can reach 4.5–7.5 m H in perfect conditions; smaller in large pots—1.5–2.5 m); vase or umbrella-shaped form
• Growth Rate: 20–40 cm per year under good conditions
• Foliage: Large, leathery narrowly elliptic dark green leaves (20–40 cm long) with undulate margins; spirally clustered at stem ends; deciduous in winter, showcasing sculptural fleshy branches with grey bark
• Flowers: Very fragrant 5-petaled flowers (5–10 cm diameter); vibrant pink to red with yellow centers; blooms in terminal clusters at branch tips late spring–fall (November–April in SA)
• Fragrance: Highly fragrant—intensely sweet with jasmine, citrus and gardenia notes
• Seasonal Interest: Late spring leaf-out → high-summer, strongly scented pink-red bloom → winter architectural branching
• Wildlife Value: Attracts butterflies and pollinators; scented blooms draw inquisitive visitors; flowers used for traditional leis
• Tolerance: Drought-tolerant (once established); exceptional heat tolerance; exceptional salt tolerance—tolerates salt-laden winds; frost-sensitive (protect below 10°C for best performance; protect below 2°C essential; bring containers indoors or provide frost protection); coastal-tolerant; wind-tolerant (stake young plants); will not tolerate waterlogging
• Planting Density: Specimen/avenue: 1 tree per 9–16 m² (3–4 m apart); Street trees: 4.5–6 m spacing; Excellent in large containers (minimum 50–60 cm diameter)
• Pet Friendly: Toxic—milky latex sap can irritate skin and eyes; ingestion may cause GI upset in pets; discourage contact with sap

Where It Works Best

• Sunlight: Full sun (6–8+ hours) for best flowering and compact habit
• Soil: Exceptionally well-drained sandy loam; rich, dry to medium moisture soils ideal; raised beds or large pots if clay; tolerates wide variety of soils from acidic to alkaline, sandy to clay; avoid winter-wet sites
• Water Needs:
  • Establishment: Deep soak twice weekly for 8–12 weeks
  • Established: Deep soak every 10–14 days in summer; water moderately when in growth; keep almost dry in winter, especially when leafless
• Maintenance: Low to moderate maintenance; prune lightly in late winter/early spring after frost risk to shape; can be grown with single trunk or multi-trunked; mulch in spring; use balanced fertiliser or low-phosphorus feed lightly in early summer; easy to propagate from large hardwood cuttings (allow to dry several days before planting); virtually pest-free in Adelaide (watch for spider mites under glass)
• Lifespan: 25–50+ years
• Climate Zones: Suited to temperate & Mediterranean SA in warm, frost-sheltered positions—coastal Adelaide ideal; thrives in warm microclimates; Royal Horticultural Society Award of Garden Merit winner
• Soil pH: Adapts to wide range—acidic to alkaline (pH 5.5–8.0)

Landscape & Design Ideas

• Poolside or courtyard feature for classic tropical elegance with non-invasive roots
• North-facing walls to capture heat and boost flowering in Adelaide's climate
• Statement container on sunny patios—wheel to shelter over winter if needed
• Freestanding specimen tree or patio tree for tropical resort ambience
• Front yard attention-grabber by entrances
• Coastal gardens—exceptional salt tolerance
• Mediterranean-style gardens for vibrant pink-red floral impact
• Single-trunk street tree plantings (4.5–6 m spacing)

Why You Will Love It

Plumeria rubra is the classic, iconic frangipani—the most beloved tropical flower worldwide and national flower of Nicaragua. Vibrant pink to red flowers with yellow centers deliver intoxicating jasmine-citrus-gardenia fragrance from late spring through fall. Vase-shaped form, exceptional salt and drought tolerance, and sculptural winter branching make it the ultimate tropical tree for Adelaide's warm, frost-sheltered coastal gardens. Heat-loving, low-water once established, and stunning in pots—it's the original tropical paradise tree bringing timeless elegance to South Australian landscapes.