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Best 6 Bonsai Tree Fertilizers (Review) – Gardeners’ Top Choice

Bonsai trees are aesthetically pleasing, but they need a lot of care to stay healthy and well-nourished.

Apart from requiring light, water, and the right temperature for healthy growth, they also need nutrients as their roots don’t have enough soil to get oxygen and nutrients from the soil.

That’s where bonsai fertilizers come in to help.

Since every bonsai tree is unique in its way, you need to identify the right bonsai fertilizer for your bonsai tree.

There are different types of bonsai trees, and they fall in one of the following categories; conifer bonsai trees, deciduous bonsai trees, and tropical bonsai trees.

So, before you choose a bonsai fertilizer, you should find out the right fertilizer for your type of tree.

Feeding your bonsai tree will ensure that it does not starve but thrive during different seasons of the year.

Without much ado! Here are the best bonsai tree fertilizers:

Table Showing The Best Bonsai Tree Fertilizers:


NPK Formula


Biogold Original – 5 kilo bag F129


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Dyna-Gro BON-008 8 oz Bonsai-Pro Liquid Plant Food


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Perfect Plants Bonsai Fertilizer Pellets


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Eve’s Garden Exclusive Bonsai Master Fertilizer


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Superfly Bonsai Fertilizer


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Eve’s Garden Special Blend of Bonsai Fertilizer


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Best Overall

Biogold Original – 5 Kilo Bag – F129 Bonsai Fertilizer

Biogold Original 5 kilo bag (~11lbs) F129 bonsai tree fertilizer

What We Liked Most About This Product

Biogold Original-5 kilo bag bonsai fertilizer is one of the most popular pre-made organic fertilizers on the market.

It will provide you with a perfect balance of nutrients for the healthy growth of your trees, shrubs, and vegetables.

What stands out most about this bonsai fertilizer is the time-release formula. This feature allows you to provide your bonsai tree and plants with the right amount of nutrients over time.

So, you won’t apply less or more which will affect the smooth growth of your trees.

Product Overview

Biogold Original is a Japanese brand. Additionally, it is perfect for both indoor and outdoor use.

And with the pyramid-shaped pellets, your potted plants will receive enough nutrients as they will not fall out or roll out of the pot when applied.

On top of that, the Biogold Original F129 bonsai fertilizer comes in a 5kg bag. It is enough to last you for a season or so, depending on how many trees you feed the fertilizer.

What’s more, this bonsai fertilizer is fermented. This means that you won’t come across any foul smell after pouring water on the fertilizer.

Overall, you will love how this organic fertilizer will lead to healthier and greener bonsai plants.

Besides, it comes with the right NPK formula of 5.6-6.5-3.5, so your plants will receive all the essential nutrients needed for healthier bulbs, flowering, and greener leaves.

However, it is quite expensive.


  • It has a time-release function that delivers the right amount of nutrients
  • Doesn’t come with a foul smell as it is fermented
  • The triangular pellets won’t roll away when applied
  • It has a balanced NPK formula of 5.5-6.5-3.5 for proper growth
  • It reduces the use of pesticides
  • It has balanced nutrients for healthier growth


  • The fertilizer is expensive

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Dyna-gro Bon-008 8 Oz Bonsai-pro Liquid Plant Food

Dyna Gro BON 008 8 oz Bonsai Pro Liquid Plant Food

What We Liked Most About This Product

The Dyna-Gro Bon-088 8 oz Bonsai-Pro liquid plant food is one of the best fertilizers for growing bonsais.

Unlike the Biogold Original fertilizer that is in the form of pellets, this fertilizer comes in liquid form. This means that you will not leave it there to dissolve on its own as it is mixed with water and applied instantly.

The most exceptional feature of the Dyna-Gro Bon-008 Bonsai-Pro liquid fertilizer is the 16 minerals essentials that it comes with.

The fertilizer comprises all the macro-nutrients and micro-nutrients needed for the healthy and nourished growth of the bonsais. So, your plants won’t lack anything for smooth growth.

Product Overview

Whether you want a fertilizer for feeding your indoor or outdoor bonsai plants, this fertilizer will meet your needs.

Also, it can be used at different stages of growth and seasons. The best part is that a small portion of the liquid fertilizer is enough to fertilize your plants for long-lasting growth.

To apply it to indoor plants, mix between ¼ and ½ teaspoon per gallon of water and water your bonsai tree.

While for outdoor plants, take ½ teaspoon per gallon of water and apply it to the plant. Monthly, you should mix 1 teaspoon per gallon of water and apply it to the tree.

Giving the right feed to your bonsai plants will ensure that they don’t burn but continue to grow healthy and as needed.

Using this fertilizer is easy and reliable. Also, you don’t have to worry about the pellets not dissolving as it is in liquid form.

If you apply the right concentration to your plants, they will complete all their life cycles without causing you problems.

Apart from the high price, this is a wonderful bonsai fertilizer to use on your bonsai plants.


  • Easy to use liquid concentrate
  • Features all the 16 minerals essentials needed for proper growth
  • It has a long shelf-life
  • Suitable for both indoor and outdoor plants
  • It is urea free


  • It is slightly expensive

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Perfect Plants Bonsai Fertilizer Pellets

Bonsai Fertilizer Pellets by Perfect Plants 5 Year Supply All Natural Slow Release Extended Enrichment for All Live Bonsai Tree Types

What We Liked Most About This Product

Perfect Plants Bonsai fertilizer pellets are another quality fertilizer for bonsai growers. This multi-purpose nutrient will promote your bonsai tree requirements for root renewal.

Since bonsai trees are grown in confined places like pots, they have limited access to nutrients.

To enrich your trees and ensure that they get all the needed nutrients, applying a fertilizer such as the Perfect Plants bonsai fertilizer pellets will help them to grow steadily.

What we liked most about the Perfect Plants bonsai fertilizer is that you will only have to apply it once per year.

As a result, the slow-release pellets will ensure that your soil has the needed nutrients to promote the growth of new roots and strengthen them as well.

Product Overview

Besides, the fertilizer comes in a 3 x 5 –inch, lightweight, and resealable bag with a 5-year supply.

This means that you won’t be buying another bonsai fertilizer for the next 5 years when you acquire this bonsai fertilizer pack.

This is good news for growers as it means that they can concentrate on other things after applying the fertilizer.

Applying the slow-release pellets is easy, and they contain essential nutrients and vitamins that will help your bonsai trees to grow efficiently and effectively.

Moreover, this fertilizer can be used on different bonsai trees and other house plants.

Generally, this is a perfect bonsai fertilizer for feeding your plants during the flushing season, early spring to late summer.

Feed your plants and watch them thrive for the next 12 months before feeding them again.


  • It provides healthy and steady growth to all bonsais
  • It comes with all the essential nutrients as it has an NPK value of 18-6-8
  • It is simple to apply
  • It can also be used to fertilize other house plants
  • Suitable for different growing seasons
  • It provides consistent growth over time
  • Easy to use by following instructions
  • Durable resealable bag


  • None

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Eve’s Garden Exclusive Bonsai Master Fertilizer

Eve's Garden Exclusive Bonsai Master Fertilizer, Exclusive Formula, Safe and Highly Effective Food for Bonsai Trees

What We Liked Most About This Product

Eve’s Garden Exclusive Bonsai Master fertilizer is another excellent bonsai fertilizer used to keep your bonsai tree and plants healthy.

The fertilizer comes in liquid form, and it has all the needed nutrients for the proper and healthy growth of your bonsai trees.

The feature that we love most about Eve’s Garden Exclusive Bonsai Master fertilizer is that it is 100% urea free.

This is good news as it means that you can apply it to your bonsai plants and other house plants without any side effects. Besides, you can also use it for hydroponic plants.

Product Overview

Unlike pellets, applying liquid fertilizer is easy and fast as you don’t have to worry about it dissolving or losing the pellets.

The liquid is applied by mixing one teaspoon of Bonsai Master Fertilizer with one gallon of water.

Then, you can apply it directly to your bonsai tree or plants. We recommend using this fertilizer once a month by pouring the mixture through the foliage down to the soil.

Alternatively, you can utilize a spray bottle to mist the leaves and saturate the soil.

Furthermore, Eve’s Garden Exclusive Bonsai Master fertilizer is safe to use and very effective in performance.

It also has an NPK formula of 7-8-6, which means that it is well-balanced for the healthy growth of your bonsai trees.

However, you should take good care of your 8 oz bottle as several users have complained that the lid is not tight and may leak if kept poorly.

Overall, this is an outstanding fertilizer for people with bonsai plants and house plants to look after. They will never lack nutrients or dry as they stay nourished.


  • Features essential nutrients needed for bonsai tree growth
  • It is 100% urea free
  • Safe and ideal for bonsai tree growth
  • Suitable for house plants
  • Easy to apply with instructions
  • It dissolves easily as it is in liquid form


  • The lid is not tight enough and may leak if not kept well

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Superfly Bonsai Fertilizer

Superfly Bonsai Fertilizer Slow Release with Free 1g Scoop Immediately fertilizes and Then fertilizes Over 1 2 Months

What We Liked Most About This Product

If you’re tight on the budget but still want a quality bonsai tree fertilizer for your bonsai trees, then this is a good option.

The Superfly Bonsai fertilizer will keep your plants healthy and well-nurtured for a long time. Also, the resealable packs mean that you will store your fertilizer securely after use.

A fascinating feature of this bonsai tree fertilizer is its slow-release formula.

Because of its nature, it will release nutrients immediately and then maintain feeding for around one to two months.

Therefore, you won’t be required to continually feed your bonsai trees as it will feed them every time you water them.

Product Overview

The Superfly Bonsai Fertilizer is also easy to apply as it comes with clear instructions and a scoop to help you feed the right amount of fertilizer.

This Superfly bonsai fertilizer pack will boost the quick and healthy growth of foliage, branches, and trunks.

But there is also another pack for preparing bonsai for winter growing and another for maintaining developed bonsai. The NPK formulas are different for every Superfly pack.

This pack has an NPK formula of 12-4-5.

You will also love this fertilizer pack if you’re a grower who takes care of both indoor and outdoor plants. It is cheaper than liquid bonsai fertilizer but very effective as well.

All-in-all, this bonsai fertilizer is reliable, efficient, and easy to apply.


  • Easy to use with clear instructions
  • Slow-release fertilizer promotes your bonsai tree for long
  • Easy to apply with the included measuring scoop
  • Great for both indoor and outdoor use
  • It comes with an NPK value of 12-4-5
  • It is cheaper when compared to liquid fertilizers
  • The manufacturer offers a 100% money-back guarantee


  • You may hear a slight smell before watering the fertilizer, but it is nothing of concern

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Eve’s Garden Special Blend Of Bonsai Granular Fertilizer

Eve's Garden Special Blend of Bonsai Fertilizer Granular Slow Release Pellets Safe and Highly Effective Food for Bonsai Trees

What We Liked Most About This Product

Last but not least, we’ve got the Eve’s Garden Special Blend of Bonsai Granular fertilizer. This fertilizer comes in granular form, and it is also very effective in performance.

So, if you’ve bonsai trees that need to be fed, then you can’t go wrong with this bonsai fertilizer.

The feature that makes this bonsai fertilizer stand out is its unique blend. The fertilizer comes with an NPK formula of 16-9-12.

With this combination, expect your plants to grow healthy and strong. They will also thrive throughout the growing season.

Product Overview

Keeping your bonsai tree alive and glowing is not easy.

But with the right environment and feed, such as Eve’s Garden Special Blend of Bonsai Granular fertilizer, you will have nothing to worry about.

What’s more, this fertilizer features a slow-release formula that will last for at least 5 months before feeding your plants again.

It is safe for all bonsai plants and house plants. So, you can use it to feed your shrubs, vegetables, and other house plants.

The fertilizer is easy to apply as the manufacturer provides clear instructions on what to do. The user is recommended to sprinkle the granular fertilizer on the soil.

So, the fertilizer will feed your plant every time they water the bonsai tree. Note that you should apply about two heaps of tablespoon per 10-inch pot size.

Aside from being slightly expensive, Eve’s Garden Special Blend of Bonsai Granular fertilizer is an ideal fertilizer for growing different types of bonsai trees.

Keep your tree and plants nourished by applying this fertilizer every 5 to 8 months.


  • Slow-release granular bonsai fertilizer
  • It is long-lasting
  • Simple to use with clear instructions
  • It comes in a resealable pack for proper storage
  • Suitable for all house plants
  • It has an NPK formula of 16-9-12
  • Keeps bonsai trees healthy and strong


  • It is slightly costly

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Frequently Asked Questions About Bonsai Tree Fertilizers

Why Is It Important To Fertilize Bonsai Trees?

Unlike regular trees, bonsai trees require nutrients during their growing season. This is because they don’t have enough room or soil to get nutrients and oxygen from the soil.

As a result, they have to be supplemented with nutrient feedings to compensate for the lack of soil.

That’s why fertilizer is essential for bonsai trees. The fertilizer delivers vitamins and minerals required to turn carbon dioxide and water into food via photosynthesis.

Fertilizers are usually made up of three vital elements, which include Nitrogen (N), Phosphorous (P), and Potassium (K).

When Should I Apply Bonsai Fertilizer?

Bonsai trees require regular feeding because they are grown in a limited amount of soil.

So, to keep the trees well-nourished and in good condition, you will have to feed them more regularly. Throughout the growing season, you should feed the bonsai fertilizer to your bonsai trees.

And when the growth of your bonsai slows down, you also need to reduce feeding them weekly to monthly. This is common in later summer and early fall.

However, you should note that some trees, such as tropical trees, need feeding throughout the year.

What Is The Right Amount Of Fertilizer For My Bonsai Tree?

The amount of fertilizer you feed your bonsai tree depends on several factors. These include the type of bonsai tree, type of soil, the depth of the pot, and time of the year.

Also, you should note the bonsai’s growth stages as it may need different amounts of elements at different times.

Nitrogen is essential for the proper growth of stems, phosphorous is ideal for strengthening roots, while potassium is vital for producing flowers and overall plant growth.

Bottom Line

Whether it is growing your bonsai trees, shrubs, vegetables, or other plants, you need the best bonsai fertilizer to keep them nourished.

That’s why we selected the best bonsai fertilizers that will keep your bonsai trees healthy and well nurtured. We’ve included both pellet and liquid bonsai fertilizers for you to choose from.

The bonsai tree fertilizers that we’ve selected in this review are some of the best.

They are also easy to apply and contain the essential nutrients required for proper growth. They feature nitrogen, phosphorous, potassium, and other elements.

I hope you’ve found a bonsai fertilizer that is ideal for your type of bonsai tree!