How to Grow Plumeria: Sun, Sharp Drainage and a Dry Winter

Plumeria wants full sun and soil that drains fast. The thing that kills it is a wet dormant winter, not cold alone — and it flowers on mature tips.

By Zakaria October 18, 2026 3 min read Save to Pinterest

Plumeria frangipani flower — Photo: ignartonosbg, Pixabay Content License, via Pixabay

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Plumeria is a succulent-stemmed tropical tree, and it is grown successfully in cold climates by people who understand one thing: it has a real dormant season, and it must be kept dry through it.

The short answer

Plumeria needs six to eight hours of direct sun and fast-draining gritty compost. It is deciduous and enters true dormancy in autumn, during which it needs almost no water — watering a dormant plumeria is the commonest way to kill one, because the roots are inactive and the stem rots. Overwinter it dry above 40 °F, in a garage or cool room, where it needs no light while leafless. Feed high-phosphorus in growth, since nitrogen gives leaves instead of flowers, and expect blooms only at the tips of mature branches.

Full sun, six to eight hours. Shade is the main reason it does not bloom
Dry dormancy. Watering a leafless plumeria rots it
Overwinter above 40 °F — no light needed while bare
High phosphorus, not nitrogen. Nitrogen buys leaves
Flowers form on mature tips, so pruning costs a season

The dormancy, which is the whole trick

In autumn, plumeria drops its leaves and stops. This looks alarming the first time and it is entirely normal — it is a deciduous tropical tree, not an evergreen houseplant having a crisis.

While dormant:

Almost no water. The roots are inactive; water sits and the stem rots from the base
No light required. A bare stick does not photosynthesise, so a garage, a cellar or a dark cool room is fine
Above about 40 °F. That is the only real requirement

The commonest way to kill a plumeria

Watering it through winter. The plant looks dead, the instinct is to help, and the help is what kills it.

Resume watering only when new leaves actually appear in spring — not on a date, and not because the stem looks shrivelled. Some shrivelling over winter is normal.

Sun and soil

Six to eight hours of direct sun, and more is better. This is the single biggest determinant of whether it flowers.

Gritty, fast-draining compost — cactus or succulent mix with extra perlite or pumice. Generous drainage holes. Plumeria has thick, water-storing roots that rot in anything that holds moisture.

In the growing season water thoroughly, then let it dry out before watering again. The soak-and-dry cycle, same as a cactus.

Feeding for flowers, not leaves

A balanced houseplant feed gives you a large green plumeria with no blooms.

Use a high-phosphorus feed — the middle number — through spring and summer, every two to three weeks. Stop entirely as the plant goes dormant.

Why it is not blooming

Cause	Fix
Too little sun	6–8 hrs direct. Most common by far
Too much nitrogen	Switch to high phosphorus
Not mature enough	Flowers form on mature tips. Wait a season
Pruned recently	You removed the flowering wood
No winter dormancy	A warm wet winter suppresses bloom

Rooting a cutting

This is how plumeria is usually shared, and the failure mode is the same as everything else here: too much water.

Callus the cut end one to two weeks somewhere dry and shaded, until hard and dry
Pot into gritty compost
Almost no water until roots form — the thick stem carries its own moisture
Four to eight weeks in warmth. Bottom heat speeds it considerably

Take cuttings in spring. Autumn cuttings root far less reliably because the plant is heading into dormancy.

Plumeria rust

Powdery orange-yellow pustules on leaf undersides, yellow blotches above. Very common, spreads on air and splashed water.

It rarely kills an established plant but causes early leaf drop and weakens it. Remove affected leaves and bin them rather than compost, avoid overhead watering, improve airflow, and clear fallen leaves in autumn — the spores overwinter on them.

Pruning

Only if you need to. Plumeria flowers at the tips of mature branches, so every cut removes potential blooms and costs a season or two.

When you do: early spring, cutting just above a branch junction. Each cut typically produces two or three new tips, which is how a leggy plant is gradually made bushier — at the price of a year’s flowers.

Common questions

Why is my plumeria not blooming?

Most often not enough direct sun, which for plumeria means six to eight hours and ideally more. The second cause is too much nitrogen, since a balanced houseplant feed drives leaf growth at the expense of flowers — plumeria wants a high-phosphorus feed in the growing season. The third is simply maturity: flowers form at the tips of branches that have reached flowering size, so a young plant or one cut back hard needs a season or two to rebuild tips. A missed winter dormancy also suppresses bloom.

How do you overwinter a plumeria?

Keep it dry and above about 40 °F. Plumeria is deciduous and naturally drops its leaves in autumn, entering a true dormancy in which it needs almost no water — a bare stick in a pot in a garage or a cool room is exactly right. Watering a dormant plumeria is the commonest way to kill one, because the roots are inactive and the stem rots from the base. Resume watering only when new leaves appear in spring.

How do you root a plumeria cutting?

Let the cut end callus for one to two weeks somewhere dry and shaded until it is hard and dry, then pot into gritty free-draining compost and give almost no water until roots form, which takes four to eight weeks in warmth. The temptation is to water it like a houseplant and that rots it — a plumeria cutting carries its own moisture in the thick stem. Bottom heat speeds the process considerably, and a cutting taken in spring roots far more reliably than one taken in autumn.

What are the orange spots on my plumeria leaves?

Plumeria rust, a fungal disease that produces powdery orange-yellow pustules on the undersides of the leaves with corresponding yellow blotches above. It is very common, spreads on air currents and in splashed water, and rarely kills an established plant but does cause early leaf drop and weakens it. Remove and bin affected leaves rather than composting them, avoid overhead watering, improve airflow around the plant, and clear fallen leaves in autumn since the spores overwinter on them.

Does plumeria need to be pruned?

Only for shape and health, and it costs flowers when you do it. Plumeria blooms at the tips of mature branches, so cutting back removes the very wood that would have flowered, and the plant needs a season or two to rebuild. Prune in early spring if the plant has become too tall or lopsided, cutting just above a branch junction, and expect each cut to produce two or three new tips — which is also how you make a leggy plant bushier over time.

Can plumeria survive frost?

Barely, and not reliably. Plumeria is damaged below about 40 °F and a genuine frost kills soft growth outright, while a hard freeze kills the plant. It is only reliably hardy in zones 10 and 11, which is why it is grown in containers almost everywhere else and moved into a garage or a cool bright room for winter. The compensation is that dormant plumeria needs no light at all while leafless, so overwintering storage is straightforward.

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Growing Guides · Oct 17, 2026