Plumeria Fertilizer: Fertilizing Requirements For Plumeria Trees


We get asked what is the best type of Plumeria fertilizer to apply? Great question.. Let’s dive in.

Plumeria plants (Frangipani) are native to tropical regions of America, from Brazil to Mexico to the Caribbean and are known for their long blooming period and highly fragrant Plumeria flower which grows in multiple colors.

Plumeria fertilizer helps create blooms like these pink and yellow center beauties

Some of its species and hybrids are grown in tropical and subtropical regions worldwide for ornamental purposes. 

Some Plumeria plant species have also become naturalized in certain areas of the Pacific Islands and Asia.

A genus of the Apocynaceae family, commonly known as the dogbane family,

Other members of the Dogbane clan include:

All display gorgeous and attractive blooms!

Plumeria contains 11 species of sun lovers which grow as small trees and shrubs and feature thick and succulent branches, large-leaved foliage and attractive flowers. 

Depending on the species, Plumeria plants are deciduous or evergreen. 

They are hardy to USDA zones 10 and 11.

The Plumeria tree are also known as:

While the blooming period of Plumeria is long, getting them to bloom might get a little tough and tricky. 

Fertilizer For Frangipani

In addition to taking care of the Plumerias water and light requirements, you also need to feed them the right type of nutrients and quantity of fertilizer. 

Fertilizing is especially critical to the proper growth of Frangipani species when they are grown in containers.

Read on to get all the essential information about Plumeria fertilizing requirements.

Best Fertilizer For Plumeria Plants

Feed your Lei flower species with a fertilizer containing a high amount of phosphorous as the mineral encourages blooming. 

Using a high phosphate fertilizer is also important because these plants only branch out when they bloom.

However, make sure the fertilizer has a low concentration of Nitrogen because too much nitrogen promotes foliage growth, at the expense of flowering, which then will also affect the branching.

Although it’s possible to use both granular and liquid fertilizers, experts prefer using granular ones.

If you are using a liquid or water-soluble fertilizer, you should ideally look for one with at least 50, or higher, phosphorous ratio. 

But, if you are using a granular fertilizer, the concentration of phosphorous should be 20 or higher.

To give you an idea, here we are listing some good commercial fertilizers for Lei flowers:

  • PETERS Super Blossom Booster Plant Food (from Amazon)
  • GROW MORE Hawaiian Bud & Bloom (from Amazon)
  • DR. EARTH Exotic Blend – Organic Fertilizer
  • FOX FARM Cha-Ching
  • Miracle GRO Bloom Booster Flower Food (from Amazon)

For those who do not know, the first number on the fertilizer label (NPK) shows the ratio of nitrogen whereas the middle number shows the concentration of phosphorous.

While Frangipani plants need slightly acidic soil. Regular fertilizing is likely to raise the acid levels of soil, which may cause damage to the plant. 

To prevent this, when watering add about 1-2 tablespoons of Epsom salt to the soil of potted Plumeria, once every month.

This will also help prevent scorched leaves.

Homemade Fertilizer for Small Plumeria Plants

Fed small or newly planted Frangipani with a homemade fertilizer prepared by mixing equal amounts of bone meal and potash. 

Sprinkle it on the surface of potting soil and water evenly to make sure the fertilizer gets properly incorporated.

Two tablespoons of each are enough for a plant growing in a five to seven-gallon container.

When and How to Fertilize Plumeria Species

Fertilize your Plumeria trees once every two to three weeks, throughout the active growing season. 

However, stop applying fertilizer as soon as the growing season comes to an end.

For trees grown in the ground. Use one pound of fertilizer for an inch of trunk diameter and sprinkle it around the drip line where the root system is and about 2′ feet beyond.

An important thing to consider while feeding these tropical plants is to make sure you do not over-fertilize them. Using less fertilizer, but feeding the plants frequently to provide the nutrients is better than using a large amount of fertilizer less often.

Fertilizing is an important part of Plumeria care, so do not ignore it if you are looking forward to witnessing super blooms.

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