Top 10 Best Hibiscus Fertilizers | 2021 Reviews (EZ-gro)

Most people with a garden considered planting hibiscus too. It doesn’t only grow attractive flowers, but it’s also manageable to cultivate. Whether you grow it indoors or outdoors, a hibiscus plant will grow well. All it needs are ample sunlight and water, which are its basic needs. On the other hand, some tend to use fertilizers to make their plants healthier.

If you’re about to plant any variety of hibiscus in your garden, it’s ideal to consider looking for the best hibiscus fertilizer if you want your plant to bloom more flowers and stay healthy. Here are some of the options you can consider: 

Top 10 Best Hibiscus Fertilizers Reviewed

  1. Palm Fertilizer by EZ-gro – Best Overall
  2. 5118 Bromeliad Tillandsia Food by Grow More – Best Value
  3. Bloom Booster Flower Food by Miracle-Gro – Editor’s Choice
  4. 2 in 1 Rose & Flower Care by BioAdvanced
  5. Hibisgain by BGI Fertilizers
  6. Citrus and Fruit Tree Fertilizer by Bountiful Garden Nursery
  7. 51624 Jack's Classic by JR Peters
  8. Exotic Blend Palm by Dr. Earth
  9. Granular Fertilizer NutriStar by Nelson Plant Food
  10. Hibiscus Plant Food by Carl Pool

#1. Palm Fertilizer by EZ-gro – Best Overall

Palm Fertilizer by EZ-gro

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  • Fertilizer Type: Liquid 
  • Formulation: 17-5-24
  • Weight: 32 fluid ounces

EZ-gro is the best brand you should consider when it comes to buying liquid fertilizer, and if you need one for your hibiscus plant, you can never go wrong with the Palm Fertilizer. It comes with improved micronutrients, providing added nutrition that your plant needs, including extra sulfur and magnesium. 

The 17-5-24 formulation is the best blend to ensure that your plant will grow healthier, regardless if you place it indoors or outdoors. With its higher potassium-level, it can make your flowers look more vibrant. Plus, your plant will get the right nutrition it needs as it doesn’t’ contain any harmful ingredient. 

Another edge of this fertilizer is that it comes with a measuring cup. You can control the amount you put in your reservoir or watering can as you apply it on your hibiscus plant. Plus, it gives precise measurement, which is handy because you don’t have to use a digital scale for measurement. 

Has higher potassium-levelHassling to apply directly to the soil
Doesn’t contain UREA

#2. 5118 Bromeliad Tillandsia Food by Grow More – Best Value

5118 Bromeliad Tillandsia Food by Grow More

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  • Fertilizer Type: Granules
  • Formulation: 17-8-22
  • Weight: 1.25 pounds

If you’re looking for a budget-wise fertilizer that’s also effective, you should purchase the 5118 Bromeliad Tillandsia Food. This fertilizer by Grow More may only come in 1.25 pounds, yet it’s worth the shot because it guarantees quality and safe ingredients for your hibiscus plant’s growth. 

It’s versatile because you can use it to apply to your plants, whether you’re outdoors or indoors. As you mix it well with your soil, you can guarantee that your plant will grow healthier. Aside from the N-P-K content, it also comes with iron, zinc, and manganese. 

Aside from hibiscus, it’s also suitable for cultivating Bromeliad and Tillandsia. Plus, it’s an effective fertilizer regardless of anywhere you plant, like wood, pot, container, or logs. 

It may have a little more phosphorus, yet it still has significant potassium to ensure that every flower is blooming radiantly. 

Includes other nutrients aside from N-P-KDoesn’t always work well on air plants
Easy to use
Only available in small sizes

#3. Bloom Booster Flower Food by Miracle-Gro – Editor’s Choice

Bloom Booster Flower Food by Miracle-Gro

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  • Fertilizer Type: Granules
  • Formulation: 15-30-15
  • Weight: 1.5 pounds

When it comes to growing hibiscus, using fertilizers can be handy, especially if you want all flowers to bloom with better colors. Out of many options from list, the Bloom Booster Flower Food by Miracle-Gro is what you should use.

It has a high phosphorus level, and it’s responsible for its vibrant color, while the nitrogen and potassium contents have a balanced percentage. 

Applying it on your hibiscus is every two weeks, and it’s suitable for both flowering perennials and annuals. If you have a 600 square foot yard, this fertilizer is enough for your plants. 

There are also two ways to use it without any hassle. You can use a watering can with water to dissolve it or use a feeder jar and attach it to the hose. 

Provides vibrancy to flowers
The packaging is too small but overpriced
Instant and effectiveOnly suitable for particular plants

#4. 2 in 1 Rose & Flower Care by BioAdvanced

2 in 1 Rose & Flower Care by BioAdvanced

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  • Fertilizer Type:  Granules
  • Formulation: 6-9-6
  • Weight: 10 pounds

The 2 in 1 Rose & Flower Care by BioAdvanced is also one of the best fertilizers you can purchase for your hibiscus plant because it can boost your plant in growing beautiful blooms. 

As you apply it, the protection against insects will last for eight weeks, which is why it’s very favorable to gardeners who love growing different flowers. It’s also strong enough to kill bugs, like Japanese beetles, aphids, lace bugs, whiteflies, and leafhoppers.

It comes with a 6-9-6 formulation, which provides enough nutrients to ensure that your plant stays healthy as it grows and produces flowers. Plus, it promotes strong roots. 

What’s exceptional about this fertilizer is that it comes with rainproof protection, and it will last for eight weeks. 

Features a rainproof protectionNot eco-friendly

#5. Hibisgain by BGI Fertilizers

Hibisgain by BGI Fertilizers

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  • Fertilizer Type: Granules
  • Formulation: 12-6-8
  • Weight: 10 pounds

The Hibisgain by BGI Fertilizers is what farmers in the agribusiness prefer because of its exceptional formulation. The nitrogen, potassium, and phosphorus blends well for a healthier soil. Your hibiscus plants will undoubtedly produce big flowers. 

It’s not hassling to apply it in your soil, and storing it is more convenient because of its resalable pouch. 

Aside from that, you’ll love using this fertilizer because it comes with other micronutrients, like magnesium, manganese, zinc, sulfur, and copper. These nutrients contribute to making your hibiscus plant healthier under any condition. 

Suitable for commercial purposes
Lower potassium-content
Promotes bigger flower bloomsNot budget-wise

#6. Citrus and Fruit Tree Fertilizer by Bountiful Garden Nursery

Citrus and Fruit Tree Fertilizer by Bountiful Garden Nursery

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  • Fertilizer Type: Granules
  • Formulation: 16-6-24
  • Weight: 5 pounds

When it comes to growing healthy hibiscus plants, you can count on the Citrus and Fruit Tree Fertilizer by Bountiful Garden Nursery. Aside from the typical nitrogen, potassium, and phosphorus it contains, you’ll also find other nutrients, like calcium, sulfur, magnesium, iron, boron, cobalt, and manganese. 

It’s one of the recommended fertilizers because you can also use it for fruit plants, like dragon fruit, bananas, plums, and avocados. It’s versatile, yet it doesn’t have compromised effectiveness, especially on flowers. 

Applying this fertilizer is not hassling, too, because you only need to mix it with water. As you dissolve about two to four pounds in hundred-gallon water, you have enough to use for an acre. If you’re using a backpack sprayer, you only need to add two tablespoons to a gallon of water. 

High potassium-contentPhosphorus-content is high
More ideal for fruit plants

#7. 51624 Jack's Classic by JR Peters

51624 Jack's Classic by JR Peters

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  • Fertilizer Type: Granules
  • Formulation: 16-5-25
  • Weight: 1.5 pound

Another effective fertilizer that you should check out is the 51624 Jack’s Classic by JR Peters because its 16-5-25 formulation works well on hibiscus. This fertilizer will make sure that your plant will absorb quality-nutrients without harmful ingredients that can affect your plant’s health as it grows. 

This fertilizer has a high potassium content, which works well for hibiscus plants because it can help make its flowers more colorful. Plus, your plants will have stronger stems. 

Aside from that, you don’t have to worry about over-fertilizing because this fertilizer comes with a measuring cup for precise measurement. You’ll find detailed instructions on the packaging, and it’s important to follow the stated measurement if you don’t want to cause further harm to your plant. 

Has micronutrients aside from N-P-K
Ideal for a small garden or backyard
Includes a measuring spoonToo potent for other plants

#8. Exotic Blend Palm by Dr. Earth

Exotic Blend Palm by Dr. Earth

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  • Fertilizer Type: Granules
  • Formulation: 5-4-6
  • Weight: 24 pounds

If you need an organic fertilizer for planting hibiscus in your backyard, you should buy the Exotic Blend Palm by Dr. Earth. Despite using natural ingredients, you can count on this fertilizer in keeping your plant and soil health. Also, the ingredients are specific for hibiscus, which is why you don’t have to worry that it might not produce colorful blooms. 

This fertilizer comes with multi-minerals, humic acids, carbohydrates, and proteins. These are enough to make your hibiscus plant grow with more vibrancy and flowers. Plus, it will not cause any harm to your plant since it doesn’t contain synthetic chemicals. 

Aside from hibiscus, you can also apply it to other plants, like tropical and palm plants. 

Comes with a probiotic
Can cause molds
No toxic ingredientsUnpleasant odor

#9. Granular Fertilizer NutriStar by Nelson Plant Food

Granular Fertilizer NutriStar by Nelson Plant Food

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  • Fertilizer Type: Granules
  • Formulation: 10-4-12
  • Weight: 2 pounds

Gardeners recommend the Granular Fertilizer NutriStar by Nelson Plant Food as the most effective for hibiscus plants and tropical ones. It comes with a 10-4-12 formulation, which provides the nutrients that your plant needs to grow colorful and big flowers. Also, it comes with magnesium, sulfur, and iron for more bulging blooms. 

Another reason why it’s worth the price is that it can help your flowers in withstanding a little rain, dry air, and hot sun, keeping your plant sturdier and healthier. Plus, you can assure that the roots are sturdier, too. 

This fertilizer provides immediate results with lasting benefits. Its quality ingredients will make your hibiscus plants a head-turner as people pass by your garden. 

Comes with iron and magnesium tooNot ideal for fruit plants
Dry-weather tolerant
Poor packaging-quality

#10. Hibiscus Plant Food by Carl Pool

Hibiscus Plant Food by Carl Pool

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  • Fertilizer Type: Granules
  • Formulation: 10-4-12
  • Weight: 4 pounds

Carl Pool offers an exceptional hibiscus fertilizer, like the Hibiscus Plant Food. It may not have the best formulation for hibiscus plants, yet the 10-4-12 is enough to supply necessary nutrients to provide your plant a well-balanced diet. 

On the bright side, this fertilizer comes with other nutrients, like calcium, zinc, copper, iron, and sulfur. It can make your plant extra healthy, letting it withstand any weather condition, unless winter. 

When it comes to applying this fertilizer, it’s easy. All you need to do is to add a tablespoon to your potted plant and water it as per the ideal frequency. You’ll notice immediate results once the flowers start to full bloom. It will undoubtedly give your backyard a satisfying look. 

Provides optimal pH level for your soil
No measuring cups included
Contains calcium and zincNot effective for fruit plants

Top Pick – Best Hibiscus Fertilizer

EZ-gro’s Palm Fertilizer will ensure that every gardener produces healthy and vigorous hibiscus plants because of its exceptional formulation. It’s the best diet for your plant, especially if you aim to produce colorful flowers with full bloom. Also, it comes with a perfect blend of nitrogen, phosphorus, and potassium, contributing a lot to the plant’s growth. 

You’ll be at ease because this fertilizer doesn’t’ include harmful ingredients, despite its concentration. It will guarantee you zero-damages on your plant as you grow it because it doesn’t contain UREA. 

The best thing about this fertilizer is that you can easily mix it with water, whether you’re using a watering can or a reservoir. All you need is to give it a good mix, and you can start watering your plant. 

If you want attractive flowers in your backyard, you should buy this fertilizer. 

Buying the Best Hibiscus Fertilizer – Buying Guide

Looking for the best fertilizer is not easy at all, especially when you’re growing hibiscus plants.  Even though planting it is not too hassling, there are still other factors you need to consider. Here’s a buying guide to help you out before buying one from different brands. 

Choosing the Fertilizer With the Best Formulation

Most fertilizers indicate a formula on the packaging, like 17-5-24. If you’re not yet aware of how to read this formulation, here’s a tip for you:

The formulation you see in the packaging of fertilizer is the amount of N-P-K, respectively. These are the product’s nutrient composition, where N is nitrogen, P is phosphorus, and K is potassium. 

Hibiscus fertilizers have this formulation because N-P-K is very crucial in growing this flower. You have to adjust the mineral and nutrient levels for your plant, which depends on many factors. Some include your soil’s health and climate. 

If you want to know the best formulation for growing hibiscus, you should buy a product containing a moderate amount of nitrogen. The phosphorus level should have a lower dose. As for the potassium level, it should be more than nitrogen and phosphorus. 

These numbers represent the percentage of the nutrient in a container. To compute for your preferred product, you multiply the weight content by the number from the formula. Five pounds multiply it by 0.17 of nitrogen is 0.85 or 85%. It’s best to keep in mind the ideal amount to use if you don’t want to damage your plants. 

Why Potassium Is Important in Planting Hibiscus

Hibiscus are large flowers, which means that this plant is more complex during photosynthesis than those with a smaller bloom. Potassium helps in creating sugars, which contribute to the added sugars from photosynthesis. When your fertilizer has more potassium, it can boost the bud of your plant’s structure. 

Why Nitrogen Is Important in Planting Hibiscus

Nitrogen is also an important nutrient content for plants, especially for hibiscus plants, because it helps create plant food during photosynthesis. With nitrogen deficiency, your plants are less healthy.

If you’re growing leafy vegetables, this nutrient also helps in providing the green color. 

Why Phosphorus Is Important in Planting Hibiscus

When it comes to protein synthesis, phosphorus is responsible for it. As plants perform energy transmissions for new tissues’ growth, phosphorus is necessary. It also provides enhanced root-growth and boosts a plant’s maturity. 

Choosing the Type of Fertilizer for Your Hibiscus

You’ll find a lot of fertilizers in the market. Some are all-around fertilizers, while some are for particular plants. Before buying one, you should decide what you need, and here are the typical fertilizer-types:

Granular Hibiscus Fertilizers

This fertilizer-type is the most common, and most brands offer their products in granules. These can last for a month to nine months. All you need to do is to sprinkle it around your plant or mix it with your soil. 

These have to break down before nutrients take effect, and you have to water your plant until you see the results continuously. The best practice is to mix these with your soil first. 

You’ll also find high-tech granular fertilizers, which have a slow-release for better results. You’ll only apply these once or twice since the roots of the plants already absorb tiny doses. 

Powdered Hibiscus Fertilizers

This type is not very common, but it’s doesn’t disappoint when it comes to effectiveness. You can easily dissolve it in water for application. Another way to use it is by adding it to your reservoir. If you’re planning to establish a hydroponic system, it’s the best fertilizer-type to use. 

Liquid Hibiscus Fertilizers

Nowadays, you’ll find liquid fertilizers available. These have a higher concentration, which is why you need to be careful in applying it. Most would mix it with water and use it for watering plants. Some also find it handy because they can use it with their sprinklers. 

Choosing the Variety of Hibiscus to Plant

Fertilizers may also depend on the variety of hibiscus that you’re planning to cultivate. 

Tropical Hibiscus

This variety of hibiscus grows red, white, lavender, orange, yellow, pink, and bicolor flowers with dark green leaves. It’s only advisable to plant it outdoors because it needs to be under full sun. If you want to grow one in colder temperatures, you can make an excellent container to take it indoors after staying under the sun for a few hours. 

Planting this variety should be in warm weather, where the night time temperature is over 50 degrees. 

Perennial Hibiscus

This variety can withstand winter, and it grows larger flowers. The leaves are light green, yet the leaf color and bloom size will depend on the species. The largest size it can reach is up to 7 to 8 feet. The flowers’ colors produce lavender, red, pink, white, and burgundy. 

There’s a dwarf one for this variety, too, if you don’t have a big space to grow these plants. 

Hibiscus: Brief Overview About This Plant

Hibiscus is typical in tropical areas, such as in China and other areas in Asia. People enjoy seeing the flowers of this plant, and sometimes, they use it to make teas. Here’s what you need to know further about this plant.

Hibiscus rosa-Sinensis is the scientific name of this plant, and it belongs to the Malvaceae family. This plant’s height ranges from 4 feet to 10 feet, while the spread is 5 feet to 8 feet. Regardless of any height, this plant needs the sun to grow vigorously. However, it’s a seasonal bloomer. 

People grow this plant because of its colorful flowers. It can make your yard look very appealing, especially when your plant produces flowers of different colors. 

Some Tips for Newbies in Growing Hibiscus in Your Area

Here are some handy tips you can consider in growing this plant in your backyard:

  • You should know the best variety of hibiscus for your yard. 
  • In planting it, it needs to be under full sun. Growing perennial hibiscus is suitable to cultivate in spring, while tropical hibiscus is best for early summer or late spring. 
  • Prepare your soil in planting, and apply your preferred fertilizer, regardless if you’re planting it in a farm bed or a container. 
  • Water your hibiscus plant thoroughly as you plant it and during its growing season. 
  • Prune your hibiscus plant to get the best hibiscus blooms. 
  • When it’s winter, and you planted yours in a container, you can take it indoors. 

Tips on How to Keep Your Hibiscus Plant Blooming

Beginners should consider these tips in keeping a hibiscus plant blooming.

  • Transfer your plant every year, and make sure to use a bigger pot during re-potting. You also need to cut off tangled hibiscus plant roots and put a new, healthy soil. 
  • Cut your plant about one-half during the early spring month, and water it gradually. After that, relocate indoors, and find a place where it can get full sunlight. 
  • During quarter-one of the year, it’s ideal for putting your hibiscus plant outdoors and let it receive sunlight for 6 to 8 hours. However, the soil shouldn’t dry out entirely. You can put a mulch on the roots’ top to retain the moisture. 
  • Water your hibiscus plant frequently, especially in the morning. Prevent watering the leaves to avert the growth of fungus. 
  • Use fertilizers, preferably water-soluble ones, with a lower phosphorus content. Do it every two weeks. 
  • Cut off spotty leaves to prevent further damages, and trim faded blooms. You should also cut off the stems’ tips during spring and summer to stimulate additional blooms. It will cause your plant’s stems to branch out further. 
  • During winter, it’s best to keep it indoors, so it doesn’t’ freeze out. It may not bloom flowers, yet you should continuously water it monthly to keep moist in the roots. 

Fertilizing Hibiscus Plants: How Often Should I Do It?

The frequency of using fertilizers will depend on the plant you’re growing. If you’re planting hibiscus plants, you should frequently apply fertilizers. However, you have to make sure that you don’t over-fertilize. It will affect your plant’s heat, leading to damages. 

Using dry fertilizers should be once a week. The best practice is to add it to your water before watering your plants, and you should apply fertilizers lightly. You can assure that your hibiscus plant will grow well. 

If you’re using a slow-release fertilizer, you should apply it four times yearly. Make sure the fertilizer you’re using has the ideal N-P-K formulation. It’s best to apply it in early spring after the first blooming, mid-summer, and early winter. 

If you’re using water-soluble fertilizers, it’s best to follow the stated instructions. It’s best to apply this fertilizer every two weeks during the blooming season of the plant. After that, you can apply once a month. 

Planting Hibiscus Blooms Inside a Container: Is it Necessary?

When it comes to growing hibiscus, you don’t need a very big space. The root system of this plant is suitable for containers. There’s no need to dig deep holes in cultivating this plant. You can place these containers on your deck or patio, as long as there’s enough sun for the blooms. It’s not necessary, but it’s possible. 

If you have a bigger space in your deck, you can even consider displaying a row of containers. However, you’ll need more fertilizers if you are to grow more. 

Planting Hibiscus During Winter: Should You Give It a Go?

Summer is the best time to grow hibiscus, and it’s suitable for the outdoors. On the bright side, you can plant it indoors too, as long as there’s enough sunlight. However, this plant is not suitable for colder temperatures. 

This plant may also require more attention because it’s delicate. It should have enough sunlight and water. Plus, using fertilizer is also necessary, but you have to make sure that you don’t put excessive in your plant or lead to damages. 


Most gardeners cultivate hibiscus plants because these grow beautiful flowers. Growing this plant can improve your backyard’s overall view. It’s more favorable to people in tropical areas because it’s where these grown the best. However, aside from healthy soil and enough sunlight, you’ll also need to use fertilizers to give your plant vibrancy. 

As you look for the best hibiscus fertilizer, you can never go wrong with the Palm Fertilizer by E Z-gro. It comes with an exceptionally blended N-P-K formula, which can help your hibiscus plant from growing healthier. Aside from that, applying it is more comfortable, so many gardeners prefer it. 

If you want your plant to make healthy and colorful blooms, you should consider using this fertilizer. 

FAQs (Frequently Asked Questions) 

What causes stress to plants?

Some of the factors that can cause stress to plants are extreme temperatures, drought soil, and heavy blooming. With hibiscus, it’s not very suitable for colder temperatures. 

Can I easily know the nutrient content of fertilizer before buying it?

Yes, you can. Most products state the N-P-K formulation on their packaging to notify buyers about the nitrogen, phosphorus, and potassium contents, respectively. Aside from that, other nutrients are available on the packaging of the products. 

Should I always put fertilizers on my hibiscus plant?

Fertilizing hibiscus plants is frequent but lightly. You can use the weekly frequency, like how orchids should be. It’s not best to apply fertilizers during cold temperatures. The best time is when the temperature starts to warm-up. 

I’m applying fertilizers, yet the leaves of my hibiscus plant are turning yellow. What should I do?

The best thing you can do is cut the damaged leaves and move your plant where there’s enough sunlight. Leave it under the sun for about eight hours. 

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