Plumeria species, also known as Lei, Frangipani, or Hawaiian Palm, are small-sized trees/shrubs of tropical origin, especially valued for their uniquely shaped flowers with impressive colors, fragrant in some species. The flowers are used in Hawaii both for making traditional Lei garlands, used in numerous ceremonies symbolizing affection and love, generally given at important moments or upon the arrival/departure of a visitor, as well as for making jams and some pastry products.
The distinctive and intense fragrance, along with the ability to flower massively and repeatedly from spring until late autumn, in a spectacular color palette ranging from white, yellow, pink, and red, even with gradients crossing all these colors in a single flower, attracts many passionate growers who dedicate their time to species of this genus. Plumeria is a long-lived plant, easy to grow and care for, even for beginners.
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Flowering of Plumeria species. For good growth and successive flowering, an important criterion is providing a suitable substrate, consisting of slightly acidic soils with very good drainage, suggesting the use of substrates amended with fermented peat, sphagnum moss, and perlite, to which sand should regularly be added, at least 10% of the total composition. Regarding light intensity requirements, it is important that Plumeria species receive at least 5-6 hours of direct sunlight daily. Insufficient light leads to abnormal leaf coloration and possible premature leaf drop. Plants exposed to direct sun are more robust and develop much better.
The ideal fertilization formula, especially for flowering, is based on phosphorus, with an NPK of 10 – 30 – 10 considered ideal. Excess nitrogen would cause excessive foliage growth and reduced flowering. Fertilizations should be applied every 2 – 3 weeks throughout the entire growing season.
Watering should be abundant and frequent, but without allowing water to stagnate, which can often lead, especially when combined with low temperatures, to root rot. Before applying new watering, allow the substrate to dry out – it should be noted that Plumeria is a succulent-stemmed plant, meaning it has water reserves but rots easily if watered too often and/or too abundantly. After mid-autumn, the watering frequency will decrease, returning to the normal watering schedule with the arrival of spring. Spraying and watering on the leaves should be avoided – this action can cause yellowing and premature loss of flowers and leaves.
The Plumeria genus contains species tolerant to soil salt concentration and indifferent to wind intensity, but they are not resistant to low temperatures, so it is recommended to move specimens indoors during cold periods. The temperature can vary between 15°C and 35°C, with proper humidity regulation. In the cold season, the plant should be placed in protected spaces where the temperature never drops below 5°C (a minimum of 10°C is recommended).
Plumeria is an upward-growing plant that always retains only a few rows of leaves at the top. The deterioration of the oldest leaves is common throughout the year (wilting - leaves turn yellow, brown or black spots appear, etc.) and can be accelerated by factors such as transport and handling (in the case of newly purchased plants), substrate changes, seasonal changes, inconsistent watering, long-term lack of fertilization, etc. If new leaves are observed developing, only corrective actions for deficiencies (watering, proper substrate, fertilization, etc.) are necessary. It is recommended to remove fallen or wilted leaves as quickly as possible. It is expected that Plumeria will lose leaves when transported (temperature differences, handling, etc.) or moved to new pots, but the plant’s recovery is relatively quick and easy.
Diseases and pests. Plumeria is a true magnet for red spider mites and spider mites, especially when grown outdoors, requiring spraying with acaricides (Vertimec, Milbeknock, Envidor, Nissorun). "Frangipani Rust" is a specific rust, but currently very rarely found among plants cultivated in the European Union. Other possible pests: Woolly aphids, Thrips, Greenhouse whitefly, Leaf miner fly.
Pruning can be done as needed to maintain the desired shape and appearance, either late winter or early spring, before new growth develops, avoiding drastic interventions as these can reduce flowering success.
Winter dormancy. In autumn, Plumeria completely loses its leaves, and growth slows down, with the plant becoming dormant during winter. Watering will be reduced or even completely stopped (depending on the growing microclimate). If watering is stopped, fine misting is allowed for minimal hydration.
Species propagation - you can read about the ways to propagate Plumeria here: Plumeria (Frangipani) Propagation
In the warm season, you can buy Plumeria from Secret Garden here: Plumeria Offer
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