Plumeria inodora

Growing in Pots, Balconies & Indoors

Plumeria inodora (frangipani) is a tropical tree grown for its intensely fragrant flowers. In the ground it reaches 3-8 m (10-24 ft), so it is far too large and light-hungry to be an ordinary room houseplant – but it is a superb container plant, kept compact in a pot on a hot, sunny patio and brought indoors, leafless and dormant, to ride out a cold winter.

Quick Details

• Container Size: Start young plants small and pot on to about 20-40 L (5-10 gal); the pot keeps the tree dwarfed
• Indoor Suitability: Too large and sun-loving to flower as a room houseplant, but it overwinters indoors dormant (grower: not a houseplant)
• Best Spot: Full sun and heat – the hottest, brightest spot you have
• Soil & Drainage: Very free-draining, gritty mix – a cactus or succulent mix, or potting mix with plenty of perlite and grit
• Watering in Pots: Water freely while growing, then keep nearly dry when cool or dormant; it rots easily if kept wet

Indoors & On the Windowsill

• Not a room houseplant: The grower marks it unsuitable as a houseplant – in low indoor light it will not flower and grows leggy.
• Overwintering indoors: This is the main reason to pot it. Before the first frost, move the pot to a cool, bright, frost-free spot; it drops its leaves and rests, so water it only very sparingly until growth restarts in spring.
• Waking up: As warmth and light return, resume watering and feeding, then move it back outside once nights are reliably warm.

On a Balcony or Patio

• Light & heat: It thrives in full sun and the reflected heat from walls and paving; a hot, sheltered balcony is ideal.
• Weight & wind: A large pot is heavy – stand it on a wheeled base to move it under cover – and shelter the brittle branches from strong wind.

Choosing the Pot, Soil & Long-Term Care

• Pot & drainage: Terracotta suits it well, as it breathes and dries fast; use strong drainage holes and skip a standing water saucer – wet feet cause rot.
• Potting mix: A very free-draining, gritty mix – cactus/succulent mix, or potting mix with generous perlite and grit.
• Feeding: Feed through the growing season with a high-potassium (bloom) feed; pot nutrients leach, so feed regularly while in active growth and stop as it goes dormant.
• Repotting: Pot on every two to three years and root-prune to keep it compact and manageable in its container.

Safety

• Irritant sap: The milky sap can irritate skin and eyes and is toxic if eaten – wear gloves when pruning, wash hands afterwards, and keep it away from children and pets.

Bloom & Flower Guide

Quick Details

• Bloom Season: Spring through summer in warm climates, sometimes over a long season.
• Time to First Bloom: On maturing plants once branches have thickened; young cuttings may take a couple of years to flower.
• Flower Appearance: Fragrant, five-petalled flowers in pink, often with a yellow centre and sometimes more than one colour, in clusters at the branch tips.
• Edibility: Ornamental only – not recommended for eating. The plant’s milky white sap is toxic and can irritate skin and eyes, so the flowers should be treated as decorative, not food.

Detailed Blooming Overview

This frangipani bears five-petalled flowers in pink, usually with a yellow centre and sometimes shaded with more than one colour. Held in clusters at the branch tips, they carry the sweet frangipani perfume. Flowering is at its best in the warmth of spring and summer, and the plants are deciduous, resting through the cool season.

Flower Characteristics

• Shape: Five broad, overlapping petals in a pinwheel, opening from a slim tube.
• Colour: fragrant, five-petalled flowers in pink, often with a yellow centre and sometimes more than one colour.
• Also known as: red frangipani (Plumeria inodora).
• Fragrance: Sweetly scented, strongest in the evening to draw in night-flying moths.

Bloom Care & Thinning

• Feeding for bloom: A phosphorus-rich feed and full sun through the growing season encourage the heaviest flowering.
• Handling: Wear gloves and wash up after pruning or picking – the milky sap is toxic and can irritate skin and eyes.
• Pollination: Moth-pollinated by scent; frangipani rarely sets seed in cultivation, so it is normally grown from cuttings.