Hibiscus fertilizers

8 Best Fertilizer for Hibiscus in 2022 – Reviews and Guide

Are you looking for a good fertilizer for your hibiscus? Do you know which ingredient is crucial for your plant’s proper growth and blooming?

How often should you feed your plant and are there any details to pay special attention to?

These are just some of the most common questions and doubts all hibiscus gardeners have, and my guide here will give answers to all of them.

Stay with me to find out how to get those gorgeous hibiscus flowers to grow wildly and how to maintain your plant’s health on a desirable level.

Fertilizer for Hibiscus – 8 Great Options!

So, before we discuss more the importance of good knowledge on hibiscus fertilization, this plant’s specific demands, let’s list several examples.

As you will notice, some of them are not specifically meant for this specie, but the ingredients are perfectly compatible with hibiscus, so they can be used.

Without further ado, here are the examples!

1. Dr. Earth Hibiscus Fertilizer

Manufacturer’s specs, features, and details

When a product holds a certificate of being the only non-GMO fertilizer in the United States, then one can have no doubt regarding it’s high-quality.

Among the biggest highlights of these products is the fact that it is safe for pets and humans. It contains no chemicals, toxic components of GMO-infested chicken manure.

Having complete organic transparency, it is approved on behalf of numerous respectable institutions, displaying the highest level of purity when compared to the competition.

Manufactured from human and feed grade ingredients, the product is enhanced with multi-minerals, proteins, carbohydrates, as well as humic acids.

Moreover, it contains trace elements boost the soil’s health, enabling a better development and growth of the plant.

  • Non-GMO verified
  • Completely safe, non- synthetic
  • Rich in proteins and minerals
  • OMRI, OIM listed
  • None thus far

Bottom line

When a team of top-level environmentalists unites inspired by the idea to change the world positively, the outcome is a highly recommendable product.

The sole fact that the product is organic means it is packed with all the probiotics needed for proper plant growth.

Perhaps the only flaw is it awkward smell, but having in mind how beneficial it is for your plant, it’s something that can be ignored.

2. HIBISGAIN Hibiscus Fertilizer

Manufacturer’s specs, features, and details

Even though it’s primarily meant for commercial growers of the plant, still everyone can buy it.

As it is specialized for hibiscus, what you will do is check out the proportion of phosphorus, and potassium, which, in this fertilizer is 12-6-8.

It’s lacking potassium, and this nutrient is particularly significant for hibiscus development.

So, it provides some basic level of food to your plant, but don’t expect it to bloom wildly.

It comes in a very convenient package, in a bag which is equipped with a small cut-out in the corner. Thanks to this, you will be able to carry it around wherever your plants are.

  • Specialized for hibiscus
  • Offers basic level of food
  • It will last for a long time
  • Convenient package
  • Lacks potassium

Bottom line

The biggest virtue of this product is the fact that it is designed specifically for hibiscuses, which means that the ratio of necessary nutrients is well-balanced.

However, knowing that hibiscuses thrive on potassium, you will notice that this fertilizer is not so rich in them.

You can try this one, but make sure you supply your plant with an additional amount of this important nutrient so that it could develop and bloom properly.

3. Nelson Hibiscus Fertilizer

Manufacturer’s specs, features, and details

Meant to be used for tropical plants and hibiscuses, this fertilizer comes with 10% of nitrogen, four % of phosphate, and 12% of potash.

Besides, it’s equipped with some minerals, which will contribute to better and faster growth of your plant.

Moreover, it will make the foliage look lusher and will strengthen the roots and vines as well.

Once applied, it gets an immediate boost, but the first specific results are seen after approximately seven days. The effect is so strong, that it works until next fertilizing.

Though it’s not of particular importance, still, I’ll mention it. This food has the best coloration I’ve ever seen, giving you the impression that your plant is getting something super-yummy.

  • Three sources of nitrogen
  • Immediate results
  • You can use it for tropical flowers as well
  • None found

Bottom line

Perhaps slight dominance of nitrogen is the only detail ruining the overall positive impression.

Apart from this, it’s a well-balanced combo of all the necessary nutrients which are essential for the proper growth of your hibiscus plant.

It takes around a week to see the results, but they are visible and have a lasting effect until the next fertilization.

4. Water Soluble Fertilizer

Manufacturer’s specs, features, and details

Probably the last thing you’d expect to see listed among hibiscus fertilizers is banana fertilizer, but thanks to the well-balanced amount of necessary nutrients- here it is.

The proportion of nitrogen, phosphorus, and potassium goes at 15-5-30, so it’s more than obvious that such a generous amount of potassium makes it a great choice for hibiscuses too.

It contains micronutrients as well.

A thing you should keep in mind is that this fertilizer is water-soluble, meaning it cannot be applied directly, only when mixed with water.

So, no sprinkling over the plant!

You can rest assured that this fertilizer will meet all the requirements of hibiscus, and as long as you use it wisely, your plant will develop properly.

If you have more plants (meaning other species) with the same requirements, then this could be a good bargain for you.

  • 15-5-30 proportion of nitrogen, phosphorus and potassium
  • Great for hibiscus
  • Full of micronutrients
  • None so far

Bottom line

Even though it’s primarily meant to be used for bananas, this fertilizer is more than excellent for hibiscuses.

As it’s well-packed with potassium, you can be sure that your plant will thrive and produce breath-taking flowers.

Just make sure you are using it as instructed.

5. Fertilizer by E Z-GRO

Manufacturer’s specs, features, and details

Here comes one more which could make you believe I mixed apples and oranges, but no. I’m aware that this is one of the most popular palm tree fertilizers, but it can do wonders with hibiscuses as well.

What concerns a vast majority of hibiscus gardeners is the level of nitrogen and urea. Having in mind that this is labeled as a urea-free product, you can have your peace of mind.

After all, with so much nitrogen, it isn’t necessary.

Fine combo of ingredients and their proportion guarantees your plant will deliver healthy and vibrant blooms.

And, as a small token of appreciation, there’s a convenient measuring cup as a part of the package.

  • Urea free product, great for hibiscus
  • Great nitrogen level
  • Measuring cup bonus
  • None so far

Bottom line

Yes, the level of nitrogen is a bit higher than the one hibiscus usually needs, but luckily potassium dominates which is why this is a good choice for hibiscuses as well.

Thanks to some other ingredients such as magnesium and sulphur, you can be sure that the soil your plant resides in will be healthy and full of beneficial nutrients.

6. EB Stone Hibiscus and Palm Food

Manufacturer’s specs, features, and details

The most significant feature of this product is the fact that it is 100% natural. The good side of it is that you get a relatively safe and completely organic product.

A slight drawback is that it doesn’t come with a necessary amount which is needed for the proper growth of hibiscus.

This fertilizer contains blood, bone and feather meal, as well as dried chicken manure, along with soil microbes including mycorrhizal fungi. The reason I point this out is a bit funky smell you’ll have to get used to if you choose this one.

  • Contains dried chicken manure
  • Mycorrhizal fungi to improve the growth
  • Completely organic
  • Nothing so far

Bottom line

Having in mind that it has an extremely low level of potassium, this one should not be your choice number one.

Let’ say it could do as a plan B, some additional options, in case you don’t have other more specialized and richer in potassium fertilizers.

On the other hand, if you have some tropical plants, you can use this product on them as well.

7. Grow More 5118 Bromeliad Tillandsia Food

Manufacturer’s specs, features, and details

Perhaps you’d think there’s another intruder on my list, but no, it’s one of the fertilizers that can boost your hibiscus’ growth.

When you check the good old trio and its ratio (I’m talking about Nitrogen, Phosphorus, and Potassium), you’ll see the numbers 17-8-22.

So, this product takes a quite high place regarding the level of potassium, which is why it qualifies to end up among my recommendations.

Moreover, the product is urea-free, which means it has no real food use. You can use it both on potted plants as well as those grown in the garden.

  • Both for potted plants and those from the outside
  • Right dossage of potassium
  • The package will last long
  • Not the first choice when it comes to hibiscus, but it can do the job

Bottom line

Perhaps the only flaw is that this is not a product specifically meant to be used on hibiscuses, but thanks to the high level of potassium, it’s perfectly suitable for it.

Having in mind that there are not many products that are rich in this ingredient, any fertilizer which has a higher amount of it is an excellent choice for hibiscus.

8. Miracle-Gro Water-Soluble All-Purpose Plant Food

Manufacturer’s specs, features, and details

Coming from one of the most popular plant food manufactures, this fertilizer is designed to keep your plants healthy and good-looking.

If you use it as directed, you don’t risk burning your plants, so don’t go all crazy with fertilizer just because you want to get a whole jungle of foliage and flowers. Use as directed.

As recommended, it should be used every 7 to 14 days, but it all depends on your plant.

The first results should be seen rather quickly, and since its ratio is 24-8-16, pay special attention not to harm your plant with an excessive amount of nitrogen. On the other hand, it has a solid amount of potassium.

If you ask me, these all-purpose products are okay, but ONLY if you can’t find anything specialized for a certain type of plant.

  • Great ratio
  • Solid amount of potassium, just as much as you need
  • All-purpose
  • Try not to burn your hibiscus, use it every 2 weeks

Bottom line

Since this is an all-purpose product, you most certainly shouldn’t expect it to make miracles with hibiscus, but do expect more than a decent fertilizer.

If you have a plant that is already healthy and well-supplied with the necessary nutrients, then using food like this is more than okay.

The best effect will be achieved if you feed the plant while you are watering it.

Nutritive Requirements of a Hibiscus

Observing a plant of hibiscus leads to a very logical conclusion- such a vividly colored flowers and highly-saturated pigmentation, along with strong wood certainly requires lots of energy to be maintained in the optimal condition.

And you are right!

Some plants require no special extra food to be able to develop properly, hibiscus is not one of them. All-purpose mixes of potting soils come with a modest amount of nutrients, so your is to compensate this lack.

Basically, here’s the complete guide on hibiscus, but if you are too lazy to read it here are some basic directions regarding hibiscus demands for specific nutrients:

Hibiscus craves for potassium

When it comes to this nutrient, simply put- they are voracious.

This ingredient is valuable for the metabolism process, proper growth and it’s also vital for photosynthesis (when the plant produces its own sugars from water and sunlight).

These sugars are essential for its proper growth, most notably for those impressive and juicy-looking flowers.

To make it possible for your plant to be well-hydrated and healthy, lusher and more beautiful, you need to supply it with lots of potassium.

It is involved in every single step of the procedure, and ironically, isn’t built into any part of the hibiscus.

Floating through the plant’s system in the form of “free ions”, its amount decreases any time a plant undergoes some stressful situation.

The blooming period is when your plant is particularly sensitive, so you need to make sure it will receive enough of this valuable nutrient while it lasts.

Commercial fertilizers usually come with a very small amount of it, so you need to search well to find the one that will keep your plant healthy and good-looking.

Be careful with the amount of phosphorus

Unlike potassium, this plant doesn’t require huge amounts of this nutrient- in fact, they don’t tolerate higher doses at all.

The reason I point this out is that newbies tend to flood the plant with some super-boosting-mega-giga-blooming fertilizers, hoping to get millions of flowers overnight, without paying attention to specific ingredients.


These usually come with higher proportions of phosphorus and can cause serious damages to your plant.

It takes just a couple of weeks to fully destroy the plant if you add more phosphorus than it needs.

So, what does it do to the plant?

It ties some minerals before the roots absorb them, so you are systematically starving your plant to death.

So, double-check it, open your eyes widely, and don’t go crazy with phosphorus.

Stick to moderate amounts of nitrogen

Even though all plants use nitrogen and they need it to develop well, still an excessive amount of it can burn the leaves.

Yes, the main cause of those commonly mentioned fertilizer burns is nitrogen.

On the other hand, a too small amount of it will significantly slow down your plant’s growth, so the best is to keep it moderate.

No plant reacts the same to a certain product, so if you see that your hibiscus is changing color, or is not developing as expected, perhaps you are using a fertilizer with too much nitrogen.

How to determine the right amount of these ingredients?

Commercial products usually feature the exact numbers on these ingredients, and they are expressed in letters and numbers.

So when you see N-P-K, it stands for nitrogen-phosphorus-potassium. The numbers next to it, for example, 17-5-24, represent the ratio of these nutrients.

The example I gave you represents the most ideal combo for hibiscus, as the proportion of these key ingredients is the one hibiscus needs.

Besides these crucial nutrients, you should also check the number of minor elements, or micronutrients.

The Best Fertilizer for Hibiscus You Can Find Online

Buying things online has always been tricky because you can never be sure whether you will end up with a pleasant or unpleasant surprise.

That’s why I make these guides, to help you compare products, and find out which suits you the best.

As you know, there are many aspects to be taken into consideration, not only regarding your plant but the fertilizer itself.

The quality, the price, the ingredients inside, eco-friendly or not are just some of the components that altogether define what is the most suitable product for your hibiscus.

Taking all those aspects into consideration, I’d choose EZ-GRO Fertilizer. Even though this is not a product made for hibiscuses, still it features an excellent combination of nutrients needed for its development.

The ratio is good- 17-5-24, which indicates that it is highly rich in potassium, as well as nitrogen which are hibiscus’ favorite ingredients.

The Best Time to Fertilize Your Hibiscus

This is similar to the question when is the best moment to have a morning cup of coffee.

Jokes aside, but, morning is indeed the best time to feed your plant, as the temperature is still cool at that time.

One of the reasons for this is that hibiscus loves sunlight, and will absorb the given food much better.

The other is the fact that higher temperatures in the afternoon may cause the water and the food (liquid one) to evaporate, leaving your plant hungry and thirsty.

Make sure you add water after you fertilize it if you use a liquid fertilizer or you may burn the roots.

In case you prefer dry ones, then water the plant before adding food to it.

How Often Should You Fertilize Your Hibiscus?

How Often Should You Fertilize Your Hibiscus?

Plants differ from one to another, and they all have different needs and requirements. But, if you are looking for some general rule on how often should hibiscuses be fertilized, then-frequently but lightly is the right answer.

If you apply this logic, you will ensure its steady and constant growth and blooming, without risking to over-fertilize it.

Since fertilizers vary in structure as well, the best would be to follow the instructions given on the package- both for frequency and the amount.

Should you opt for slow-release fertilizers, it should be added not more than a couple of times a year.

The first “meal” is in the early spring, the second after the first circle of blooming is over, the third in the summer and the last one with the first winter breath.

In case you prefer water-soluble products, you can feed your plants once every 14 days in spring and summer and only once every month during the winter and fall. This applies if you use a weaker solution.

Some people even tend to fertilize hibiscuses during every watering, which is also an okay option, just mind the amount. Be careful not to feed it too much.

Again, observing your plant will be the best method to determine whether it needs some boost or not.

If the plant looks healthy, you can establish some schedule and maintain its good condition. In case you spotted some signals of illnesses and similar- examine the leaves and flowers, consider changing the product, cleaning your plant or repotting it and similar.

How to Fertilize Hibiscus Plants?

There’s not much of a complicated philosophy when it comes to fertilizing your hibiscus plants is nothing complicated at all. However, there are some steps to follow to make it easier and more correct.

So, if you analyze a bit, you’ll conclude that to make the plant grow and produce flowers, you need to feed the roots.

Therefore, when wondering how to feed hibiscuses, do keep in mind that the food needs to reach all of the roots to develop properly.

If the food gets just to the edges of the canopy, then your plant won’t get the necessary nutrients, and will gradually decelerate its progression.

Whichever plant is in question, the one in the pot, or the one growing in the ground, the rule is the same- the fertilizer needs to travel all the way to roots and feed them so that they could further transport food throughout the entire plant.

If you have a water-soluble food, then follow the instruction on mixing, so to make an adequate combination. Then pour the specified amount of it in the soil.

If you have some of those products that are usually be sprinkled on top of the soil, they are usually accompanied by a measuring cup. This way you will never have doubts whether you’ve added enough fertilizer.

Fertilizers You Should Avoid

Okay, don’t expect me to give you a list of specific names of the products, otherwise, my review would become quite a lengthy document.

Jokes aside, it’s not about avoiding any particular manufacturer or brand. It’s about making selection based on the ingredients which are contained in a fertilizer.

Like I already explained, what hibiscus needs are a solid amount of potassium, so choose the product which has it.

So, avoid those which have a high proportion of phosphorus and those which are predominantly rich in nitrogen.

Even though nitrogen contributes to the growth of your hibiscus, if there’s not enough potassium, it could seriously damage your plant.

Moreover, if possible, look for the products which contain no urea, as it is also a much safer choice for hibiscus.

Also, those containing chlorine are not adequate for your hibiscus. They may be less expensive, but certainly are more harmful.


It all boils down to understanding your plant’s basic needs and trying your best to fulfill them, in this case, hibiscus’ cravings for potassium.

Gardening is a demanding profession/hobby, but a highly rewarding one as well, so the more you give the more you get.

This doesn’t mean you should pour gallons of fertilizer in your plant hoping to get king-size flowers. It’s love and devotion that should be added in limitless amount, that’s what all plants thrive on.

You have this convenient guide with my recommendations as well as some products listed, so, please, feel free to refer to it whenever you have doubts.

Always be open to learn new things and explore new products, but do so equipped with the knowledge, so to keep your plant safe, healthy and happy.

Happy gardening!