Top 7 Best Fertilizers for Plumeria | 2021 Reviews

Plumeria is an excellent indoor and outdoor plant. Growing them is not a challenging task because they only need some sunlight, water, and nutrients. As a tropical plant, it produces a sweet scent and lovely flowers during the sunny season. Feeding them with the right fertilizers will maintain and improve its beauty.

Knowing the basics about growing plumeria is easier as you read through this article. We enlisted the best plant food that you can use for your flowers at home. They come in various components that we will break down. You may also find our tips helpful so that you can improve in taking care of your girls.

Begin your journey with us because we cannot wait to see your flowers bloom.

Top 7 Best Fertilizers for Plumeria Reviewed

  1. Water Soluble Bloom Booster Flower Food by Miracle-Gro – Best Overall
  2. Flower Girl Premium Bud & Bloom Booster by Dr. Earth – Best Value
  3. Hibiscus and Flowering Tropicals NutriStar by Nelson Plant Food – Editor’s Choice
  4. Premium Bloom Flowering Plant Food by EarthPods
  5. Liquid Kool Bloom Fertilizers by General Hydroponics
  6. Bloom Booster by Mammoth P
  7. Mycorrhizal Inoculant by Dynomyco

#1. Water Soluble Bloom Booster Flower Food by Miracle-Gro – Best Overall

Water Soluble Bloom Booster Flower Food by Miracle-Gro

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  • Item Weight: 13.3 oz.
  • Dimensions: 3.75 x 3.75 x 5.75 inches
  • NPK: 15-30-15
  • Area of Coverage: 600 sq. ft.
  • Duration of Application: 1 to 2 weeks

The secret of growing beautiful plumeria plants is feeding them with the right nutrients. It would be best if the fertilizer’s formula has more phosphorus than nitrogen because the former is responsible for the flower’s blooming process. The more phosphorus, the fuller your flowers will look. 

Miracle-Gro is a brand that creates different products for specific purposes. Following the recommended formula for plumeria, Water Soluble Bloom Booster Flower Food is the most recommended item by users. It has a 15-30-15 NPK formula, which ensures that your flowers will bloom with beauty and elegance. 

You may attach it to a hose directly or put it in a watering can. The ratio for outdoor plants is one tablespoon per gallon, and indoor plants only need one teaspoon per gallon. You will notice the results in a few days, and you must reapply it after a week or two so that you can reach the formula’s maximum capacity. Your plumerias will flourish with more vibrant colors. 

For better results, do not only spray on the petals but include the roots and leaves. It is a way to ensure that you have covered all corners of your plumerias. As a tip, please do not leave this soluble under the sun because it may evaporate and would not last long. This one has a wider coverage so that it can last at least six months of constant use.

Does not damage the soil and plant with the right formula
Sizes and price may differ from online and mall items
More phosphorus content for the blooming process
Not too budget-friendly
Makes flowers bloom more with better colors
Wider area coverage than other brands
Effective and cost-efficient

#2. Flower Girl Premium Bud & Bloom Booster by Dr. Earth – Best Value

Flower Girl Premium Bud & Bloom Booster by Dr. Earth

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  • Item Weight: 4.1 pounds
  • Dimensions: 3 x 8 x 10 inches
  • NPK: 3-9-4
  • Essential Ingredients: Probiotics, seven strains of soil microbes, ecto and endo mycorrhizae

Switching to an all-natural product is possible with Dr. Earth. Like Miracle-Gro, this brand made specific items for your gardening needs. If you search for a fertilizer that would improve your flower’s bloom, Flower Girl Premium Bud & Bloom Booster can be a perfect choice. It follows the same amount of phosphorus required for flowering plants. 

This product is suitable for indoor use. If you are leaving in a dorm or apartment without any terrace, you can trust this brand to keep your flowers’ vibrancy. Its nutrients came from alfalfa meal, fishbone meal, feather meal, soft rock phosphate, and mined potassium sulfate. With its organic component, you must expect it to have specific probiotics and other nutrients that are useful to your plant. 

Dr. Earth promises premium quality of roots, stems, leaves, and flowers for your plumeria. You will not need any additional chemical fertilizers because it has all the nutrients needed for plant growth. What’s more, it holds the water well, so your plants get enough hydration throughout the day. You do not need to apply it weekly since the granules can last for months.

Indeed, this product will save you from spending too much. The recommended formula when applying this is two tablespoons per gallon of soil. With their mycorrhizae component, plants can absorb more nutrients from the solution.

Improves the roots and absorbing capacity of the plant
May damage soil with the incorrect measurement
No need to reapply after a few monthsPrice is expensive
Natural and organic components
No need for chemical fertilizer
No need to dissolve in water

#3. Hibiscus and Flowering Tropicals NutriStar by Nelson Plant Food – Editor’s Choice

Hibiscus and Flowering Tropicals NutriStar by Nelson Plant Food

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  • Item Weight: 14.92 pounds
  • Dimensions: 9.84 x 9.06 x 7.24 inches
  • NPK: 10-4-12
  • Essential Nutrients: Manganese, Iron, Zinc, and Magnesium

If you are willing to pay an extra amount for a trusted product, you can rely on Nelson’s Nutri Star Hibiscus Food and Flowering Tropicals. The price may not be as friendly as the first products, but the blossom of your plumeria would be worthwhile. This formula does not only target the flower, but it also improves the quality of the soil.

Unlike Miracle-Gro and Dr. Earth, this product has more nitrogen content than phosphorus. We may have suggested that you choose products with more phosphate content, but this does not fall behind its competitors. If you are planning to plant your plumerias outside, this could be the right pick. Having less phosphorus does not mean you will not get enough bloom, but having more nitrogen would result in taller stems.  

Since plumeria is a tropical plant, there is no wonder that Nelson’s Nutri Star fits this flower. It keeps the vines stronger, makes leaves greener, and lets buds bloom faster. Another advantage that you will get from this solution is your plant’s capacity to surpass dry weather. With a weekly application of this fertilizer in the summer season, you can maintain the beauty of your garden.

You do not need to wait for long to see obvious results. After a while, you will observe a few positive changes to your seeds or dying plants. They will quickly regenerate, and this effect is long-lasting. For the past three decades, the company has focused on researching a formula made perfectly for flowering plants. As of today, this product is the most successful invention of Nelson.

Flowers bloom faster with more vibrant colors
Bloom is not as full as the first two products
Taller stems because of the nitrogen contentLower phosphorus content
Improves the soil quality for the plant
Helps plants survive dry weather
Fast-acting formula

#4. Premium Bloom Flowering Plant Food by EarthPods

Premium Bloom Flowering Plant Food by EarthPods

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  • Item Weight: 3.52 ounces
  • Dimensions: 2.56 x 2.56 x 2.75 inches
  • NPK: Not indicated

Among the products listed in this review, Earthpods are the most unique when it comes to packaging. Apart from its light, colorful, and earthy design, the granules are contained in a tablet. Each tub has 100 EarthPod tablets that can last up to four years of consistent use! Yes, it is long-lasting, and it comes with all the natural ingredients your flower needs.

It is a premium indoor and outdoor fertilizer that can improve the quality of any tropical plants. Compared to other brands, EarthPods are quite convenient to use. You do not need to measure it, dissolve it in water, and its supply can last longer than others. While it has an all-natural component, it does not have a strong odor that affects the scent of your plumeria. 

To use this item, all you need is to open the tablet, pour it into the soil, and add water to your plants. It has a bloom booster that would nourish your flowers during the spring and summer. Its tube is eco-friendly, and it does not take a lot of space alongside your gardening tools. Another benefit that EarthPods assures its customers is that their products are child and pet-friendly.

Feed your plumeria with these capsules every two to three weeks. In no time, you will observe how healthier your plants are growing. While many say that this brand is not too affordable, each tube’s number of capsules can last for years. Thus, you do not have to buy another bag in the next four years. Thus, it is cost-efficient and a practical option.

Convenient to use and easy to storeThe effect may take weeks before it surfaces
All-natural without a strong odor
Expensive for the first-time buyer
Great for indoor and outdoor use
May harm non-flowering plants
One tube can last for four years
Child and pet-friendly

#5. Liquid Kool Bloom Fertilizers by General Hydroponics

Liquid Kool Bloom Fertilizers by General Hydroponics

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  • Item Weight: 2.65 pounds
  • Dimensions: 3.3 x 3.3 x 9 inches
  • NPK: 0-10-10

While most fertilizers are granules, there is a liquid formula that stands out. General Hydroponics’ Liquid KoolBloom boosts the quality of your fruits and flowers at home. The brand created this formula to fortify the nutrients that your plumeria absorbs and add essential elements for a bigger bloom and impressive growth. 

This solution contains stress-reducing vitamins to facilitate the flower’s production of oils and increases plant growth. For best results, you must partner this with the Dry KoolBloom fertilizer. As the reproductive cycle of your plumeria begins, you will need to sprinkle this into the soil. When flowers begin to bloom, that is when you should use the dry mixture. 

You have to add two tablespoons of this solution to a gallon of water. Spray it to your plant weekly, and notice how fast your flowers and fruits will grow. Based on its NPK content, it has more phosphorus content and does not have nitrogen. Because of this, you can expect to have fuller petal blooms. However, the height of your plant may be affected due to the absence of an essential element. 

Again, the Liquid KoolBloom focused on the production stage of your plant. Please ensure that you store this in a cool and dry place so that its effectiveness can last long. Best of all, it is not too expensive like others, but it must come with dry granules afterward.

Helps in increasing essential oils and blooming of flowers
Cannot reach optimal effect without the Dry KoolBloom
The odor is not strong and alleviates the sweet scent
Lacks nitrogen
Encourages plant to absorb more nutrients
More phosphorus content than nitrogen
Affordable price

#6. Bloom Booster by Mammoth P

Bloom Booster by Mammoth P

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  • Item Weight: 8 ounces
  • NPK: Not indicated
  • Phosphorus Cycling: 30x increase 
  • Average yield: 16% increase
  • Stem strength: 06% increase

Mammoth P prides itself on its university-researched products. Unlike other commercial items, its Bloom Booster formula focuses on the reproduction of phos[horus. Again, this element is an essential factor when it comes to the budding stage of your plumeria. The more phosphorus your fertilizer has, the fuller your flowers will bloom. 

This liquid solution has undergone a tedious process of assessing different soil microbes. Its research filtered each bacterium that can facilitate phosphorus creation to help nourish your flowers and fruits. It is also useful to any soil and media, including soilless areas and hydroponic systems. You may use it as a supplement or use it as an independent fertilizer. All you need is to mix it with 400 gallons of water. 

An increase in the average bud yield is what you should expect from this product. It will also improve stem strength and facilitate the production of phosphate. You must shake the bottle well before you pour or spray it to your plants. 

It would be best if you do not use a lot of it on your first use. While this product got several positive reviews, a soil test on your garden area is plausible. It is one way to ensure that the formula you are using will not cause your pots or backyard arid. Overall, many items attest to its effectiveness and its long-lasting value.

Formulated under a university research program
Takes a few weeks to see effective results
Does not damage soil with proper measurement
Limited stocks only
Facilitates production of phosphorus
Tested by Colorado growers
Improves stem strength

#7. Mycorrhizal Inoculant by Dynomyco

Mycorrhizal Inoculant by Dynomyco

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  • Item Weight: 1.4 pounds
  • Dimensions: 10 x 5 x 1.4 inches
  • NPK: Not indicated
  • Clean Green Certified
  • 100% Organic and Natural

Dynomyco’s Mycorrhizal Inoculant is not similar to other fertilizers because of its component. This one focuses on the mycorrhizae fungi that develop the nutrition in the soil. It becomes a catalyst for the plant’s roots to absorb the nutrients in the soil.

As to your plumeria, you can use this inoculant if you noticed that the plant does not absorb enough nutrients despite using a fertilizer. It might be due to the insufficiency of mycorrhizae fungi in your base soil. Thus, this solution is highly needed to improve its quality. The formula is highly concentrated, and it mainly prevents your plant from any stressful enzymes and microbes. 

As an inoculant, it allows your plants’ roots to be stronger and consume enough elements that are helpful to its growth. While it does not focus on your flowers or fruits’ budding, it is a useful supplement to other fertilizers. If you are in a hot tropical country like Israel, Dynomyco’s product is suitable for your gardening needs. The formula can stand extreme heat weather without drying the soil or your flowers. 

Customers’ approval is at the core of the company’s goals. That is why they do not fall short of delivering products made with premium ingredients. There is no wonder why numerous middle easterners choose this item as their top pick.

It may not be a bloom booster than the first items, but it encourages a healthier soil for better absorption of nutrients of your plumeria.

Highly concentrated and can stand extreme dry weather
Focuses on improving soil quality only
Facilitates nutrient absorption ability of the plant
Not a bloom booster product
Made of premium ingredients from Israel
An excellent supplement to your fertilizer

Top Pick – Best Fertilizer for Plumeria

Plumeria is a tropical plant that does not need a lot of attention. Once you feed it with the right nutrients and constant watering, it will bud and bloom without any problem. This flower comes in different colors like white, yellow, and pink. Finding the appropriate fertilizer for its needs is a must as a gardener.

Choosing a plant food is not easy, peasy, for you will be considering several factors. For plumeria’s case, you need to check the NPK content of the product. Phosphorus must have more amounts than nitrogen and potassium. It is the main reason why we chose Miracle-Gro’s Water Soluble Bloom Booster Flower Food. It will grow your plumeria with the average height and more vibrant and fuller flowers. 

While the other products have their benefits, we find this said brand practical and cost-efficient. It lasts long to your pots or soil, and you can attach it to a hose and sprinkle it with ease. Other brands are in liquid or capsule forms. If they are more convenient for you, you can also check them out. 

Best Brand of Fertilizers for Plumeria


The versatility that Miracle-Gro can do is why it landed on our top spot of fertilizer brands. Its experts know that each gardener has a specific need for their plants, such as its buds’ growth. When you visit its website or check it out on online shops, it always has a comparison chart for its products related to the item you selected. There you will see the NPK content and other elements that their products have or lack. 

Apart from its convenience, it is also a practical choice. Yes, the items have higher prices, but they are long-lasting. Some of them last many years, so you will not see yourself buying another bag for the next three months. Indeed, it is an excellent choice if you are trying to be a smart gardener. 

Dr. Earth

With its name, the brand’s intention is quite clear. It is a company focusing on organic products for your gardening needs. Its Flower Girl is only one among its popular fertilizer products. They try to strike a balance between your gardening needs and the health of the environment.

Another thing that makes this company a reliable one is its unending positive feedback from customers. Compared to unfed plants, Dr. Earth’s flowers and fruits have a sweeter scent, does not have a chemical odor, and have brighter colors. Picking any products from their catalog will not hurt your budget a lot.


This brand has expensive products, and that is a fact. However, it also means that they are making their fertilizers from premium ingredients. We ranked EarthPods third because it offers a unique take when it comes to feeding your plumeria. 

Instead of granules or liquid formula, this one has a capsule that you can feed your plants every four weeks. You will get hundreds of capsules in a single tube that is good for two to four years. Yes, their products last enough, which makes the price reasonable. If you have not checked their items yet, maybe it is time to switch to this all-natural brand.

Keeping Your Plumerias in Check – Buyer’s Guide

You must remember a few things when gardening plumeria. While it is not a high maintenance flower, it deserves to be treated like the rest of your girls. Here are four tips to guide you when growing this flower in your backyard. 

Plumerias Need Enough Sunlight

There is a reason why plumeria is a tropical plant. It needs enough sunlight so that it can photosynthesize and reproduce properly. This flower-bearing plant needs at least five hours of direct heat from the sun. However, you should avoid exposing it to heat for longer hours because it will dry your flowers. Moderation is the key so that your flowers will bloom at its optimal capacity. 

Potting Plumeria Is Essential

It would be best to put your plumeria in a pot. Please make sure that the size is enough for it to grow its roots and absorb water. You must also ensure that the pot has well-drained soil. Keeping it wet all the time may cause moisture and produce toxins that are harmful to your plumeria. Overhydrating your flowers will kill it in no time. 

Use Fertilizers With Enough Phosphate Content

If you read the earlier parts of this article well, you may have learned that phosphorus is the key element for flowers to bloom with freshness and vibrancy. That is why you have to check the NPK content of your plant food. According to experts, water-soluble fertilizers should have at least 50g of phosphorus, and granular fertilizers should have at least 20g. Supplementing your soil with inoculants that facilitate phosphorus production may also be helpful. 

Weather Affects the Amount of Water Needed

You have to give more water to your plumeria during sunny seasons. It is the time when these flowers start budding. Thus, hydrating it will affect its growth rate. However, please be careful not to water it at an enormous amount. You can skip watering or pour a little amount for it to get by during the cold weather. 


As we end this article, please do not forget what you have learned about taking care of your plumerias. Fertilizers come in different ingredients, and what matters is that you got the right amount of phosphate and measurement in your potted plants. As spring and summer are coming, it is time for you to begin seeding them so that they will fully bloom in the tropical seasons. 

We highly suggest that you try to use Miracle-Gro’s product when feeding your plants. It does not need a lot of maintenance, and the price is reasonable enough for its effectiveness. You can also check other brands if you are looking for other elements not found in our recommended item.

Growing flowers in your garden is a fulfilling activity once you see them bloom. It may be challenging to maintain, but products in the market would help you do the task correctly. With proper research, you shall be equipped with enough knowledge on how to improve your gardening skills. 

FAQs (Frequently Asked Questions)

What is NPK?

There are three essential elements that plants need when you grow them. NPK stands for nitrogen, phosphorus, and potassium. NPK’s amount may vary from one fertilizer to another. Since we are dealing with plumerias here, a tropical plant, it is best to ensure that your NPK has a higher phosphorus content. That is the middle number in this formula. If the solution has more nitrogen, you can expect to have taller plants with lesser bloom.

Can you grow plumeria indoors?

Yes, you can grow plumeria indoors. However, it would help if you kept in mind that this plant needs enough sunlight to survive. Even if you are only living in a dorm, find a spot where it can absorb enough sun for at least five hours a day. After that, you can keep it in your room and feed it with some fertilizers. It would be best if you do not forget to water it as well. Sunlight, water, and air are the main elements that keep a tropical plant alive. 

What are the nutrients needed by a plumeria plant?

There are sixteen elements that a plumeria needs to survive. They are classified into two major groups, which are the mineral and non-mineral elements. Hydrogen, Oxygen, and Carbon are examples of the latter. They are found in the water content that you give to your plants. The other 13 are further divided into micro and macronutrients, which are found in the soil. They include the NPK, Calcium, Magnesium, Manganese, and Zinc, among others. With the right fertilizer, you will get all these elements to help the growth of your plumeria.

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