Rock Phosphate Vs Bone Meal- One-Stop Guide


Rock phosphate is a natural soil conditioner that promotes plant growth while simultaneously balancing the pH of the soil. Bone meal, on the other hand, helps to balance and intensify your garden’s fertility by providing nitrogen. What are their differences? How do they work together?

Rock phosphate is a type of fertilizer that can be used to improve soil quality. Bone meal is another type of fertilizer made up of animal bones and teeth. Both rock phosphate and bone meal are effective ways to improve the quality of soil. The difference between these two fertilizers is that bone meal is more expensive than rock phosphate, but it has a higher nitrogen content.

Choosing between the two strongest organic Fertilizers may be rather stressful if your plants have developed a condition that only Fertilizers can solve.

When you don’t know which fertilizer to use, the stress level rises even more.

If you were to select between Phosphate of Rock and bone meal in this circumstance, which would you choose?

Both are excellent phosphorus suppliers. A bone meal, on the other hand, is the most readily accessible alternative. Furthermore, if the soil is in poor condition and a speedy remedy is required, bone meal is the best option. If your soil need a long-term supply, go with Phosphate of Rock.

So that’s simply a teaser for both of the options. Simply scroll down to see the in-depth tutorial.

The Definition of Bone Meal

Simply defined, bone meal is animal bones that have been pulverized and finely minced. Of course, there are the desiccated bones. If you live near a slaughterhouse, you may know where the waste from the slaughter goes. 

If not, let me inform you that the waste from slaughterhouses is also blended to produce a higher-quality bone meal. Now that you know what bone meal is, you may be curious as to what it is used for–


Because it includes 15% phosphate and 35% protein, it’s a good choice. With so many nutrients, a bone meal may help strengthen your roots. Protein strengthens our muscles in the same way.

Bone meal is readily available on Amazon.

Bone meal may also be used to fertilize tulip plants. This will assist you in addressing any phosphorus deficiency in your soil.

Determining the Definition of Phosphate of Rock

Phosphate of Rock, like bone meal, is an organic fertilizer. However, it is little more than a clay-based mined rock. So, what exactly is Phosphate of Rock?

It’s a terrific provider of calcium and phosphorus, to be sure. It has a phosphorus content of 30%. This naturally occurring phosphorous bonds to the soil and benefits your plant. Chemical Fertilizers, on the other hand, are known to harm the soil. That is why Phosphate of Rocks are such an effective fertilizer. is the source for this information.

Phosphate of Rock is also known as rock dust. Do you want to know how it earned its name? The name comes from the rock minerals found therein. It also promotes the development and healthy growth of your indoor flower or veggie plants.

If you need to purchase a packet of Phosphate of Rock, you may do it quickly on Amazon.

So now that you know what Phosphate of Rock is, let’s have a look at a fast review.

A Quick Comparison of Phosphate of Rock and Bone Meal!

You’re probably aware that both bone meal and Phosphate of Rock aid in the growth of indoor plants. But, then again, what are the differences? So we’ve provided you a short rundown of the ones listed below-

MeasuresPhosphate of RockBone Meal
To what degree is it durable?Long-term ProvisioningTemporary supply
Time required to begin workingFertilizer that works slowlyFertilizer that works quickly
The amount of Phosphorus in a Phosphorus-Containing CompoundPhosphorus deficiencyPhosphorus levels are rather low.

You should be able to make an informed decision now that you’ve studied the fundamental distinctions. These Fertilizers, on the other hand, are not the ideal choice for your aquatic plants. A dwarf hair grass or a miniature sword, for example. However, if you have some spare time, read down to the detailed examination of both opponents.

Phosphate of Rock or Bone Meal “In-Depth Guide”

If you’re still stuck with deciding between Phosphate of Rock vs bone meal. Then calm down because we’re about to reveal the in-depth guide on bone meal and Phosphate of Rock. So be with us till the end.

Concerns about safety

So dear indoor planters, first things first. Let’s talk about the Concerns about safety for both because you don’t want to mess with your well being, right?

If not, be aware that both of these may be dangerous and cause you to be concerned about your safety. So, you may be wondering, what does it even mean? Because both are organic Fertilizers, as previously indicated. As a result, we’re left wondering: is phosphate rock dangerous?

Well, too much Phosphate of Rock can be harmful to your health. If you’re gardening vegetables, a high level of Phosphate of Rock can be absorbed by your veggies. And the toxic element remaining will eventually reach your stomach if you consume the veggies. 

But if you’re interested in flower gardening, then high usage of Phosphate of Rock won’t be a direct threat to you. On the other hand, you might want to know- is bone meal safe for pets?

If you have pets, you should avoid using bone meal since it is dangerous to them. You don’t want your pet to eat part of the fertilizer, after all. When you eat a bone meal, it develops a deposit in your stomach. And surgery is the only way to get rid of it.

Unlike Phosphate of Rock, an extra amount of added bone meal to the plant won’t be a threat to your health.

So, if you’re a pet owner then it will be wise to avoid bone meal. On the contrary, if you’ve planted veggies for your consumption you can avoid Phosphate of Rock or just add in a little amount. 

When picking the best fertilizer for you, keep the above factors in mind.


The most crucial component now is the application of these Fertilizers. We don’t want to overwhelm you with information. So, for both Fertilizers, we’ve only picked the application technique and appropriate plants.

Now is the time to get straight in-

FertilizersSoil TypeSeed TypeType of Plant
Phosphate of RockSoil that is acidicSeeds that have not been treatedPlants with flowers and leaves
Bone MealSoil with a low pHtreated/Seeds that have not been treatedPlants with roots (onion, turnips, carrot garlic)

So, the next time you’re unsure which fertilizer to use, refer to the chart above. After that, you’ll be ready to leave. Examine the fertilizer you’ll need for each soil and seed type.

Procedure for Submitting an Application

If you had the idea in your mind that all Fertilizers are applied in the same way, then you’re wrong bud. Because both of the Fertilizers require different Procedure for Submitting an Applicationes. Guess what, we’ve given insight  for both.

Phosphate of Rock

So let’s see, how to use Phosphate of Rock?

Phosphate of Rock needs to be put in layers. If the pieces of Phosphate of Rock are tiny, then you can just toss them with the soil and put your plant there. Or you could stack them up above the soil. Then spread a handful of water. Now put another layer of soil. And you’re good to go.

1650339490_780_rock-phosphate-vs-bone-meal-one-stop-guide-8974472Bob Villa is the source.

Bone meal

Isn’t it time you learned how to use bone meal on plants?

Bone meal is quite simple to use. Because the bones have been finely pulverized, they blend in well with the earth. All you have to do is dig a hole in the earth and fill it with a sufficient quantity of bone meal. Finally, just fill the hole with earth. And that’s the end of the soil preparation.

Simply set the plant in the appropriate location.

We recommend to use these equipment while applying both fertilizers:


If you’re asking where to find Phosphate of Rock near me? Or where should I look for a bone meal?

Don’t worry, we’ve already done the legwork for you. 

We’ve heard that Phosphate of Rock is getting expensive pretty soon. Because the sources of Phosphate of Rock are difficult to be found. So if you’re scared already then we suggest you not freak out. Because we happen to know an alternative.

Animal dung, which is a rich source of phosphorus, may be used in your soil. You may also manufacture your own fertilizer by combining leftover phosphorus-rich vegetables. Both of these should suffice.

If you’re worried about the bone meal, know that it’s not going away. So don’t be concerned about it. Here are a few bone dishes that are easy to come by:


If we consider the types of Fertilizers, then we’ll see that both have varieties. Like, there are two types of Phosphate of Rock based on their consistency. One is soft Phosphate of Rock and another one is hard Phosphate of Rock.

The basic difference between the two types is that the Procedure for Submitting an Application. If you’re using the soft one then you may mix it with the soil and then plant the seeds. Or just put your plant in the mixed soil when necessary.

If you choose hard Phosphate of Rock, then you can layer it up with the soil. Just put one layer of hard Phosphate of Rock above the soil layer. Now cover it up with another layer of soil. That’s it.

Now just like Phosphate of Rock, the bone meal has two forms. One is liquid and another is dusty. Both of them can be mixed with soil with just a stir. The dust one can be used as mentioned in the bone meal Procedure for Submitting an Application above.

So, if you have to pick between the two, we recommend the bone meal. Because both dry and liquid bone meal are straightforward to utilize and adapt to every soil type.


It’s time to start comparing prices. So that if cost is a problem, you’ll know which option to choose.

For bone meal, the price is around 13$- $24 per 4lb. Whereas, for Phosphate of Rock, the price ranges from $30-$44 per 4lb.

We’ve included a few of our favorites below for your convenience-

Phosphate of Rock:

Meat from Bones:

Now that you know our favorites, we hope you like these fertilizers as much as we do.

Upon discussing all the factors, if you’ve got safety concerns and a flower garden then Phosphate of Rock is the one for you to use. But if you’re concerned about the Availability, easy applications, and comparatively low price then just go for bone meal.


Here are some professional recommendations from us to help you choose between the two options:

  1. To establish which of the necessities your soil needs and chosen appropriately, a soil test should be performed first.
  2. For the bone meal to be effective, the ph level must be less than 7.
  3. By adding bone meal to the soil, the high nitrogen content may be adjusted.
  4. The fertilizer level should be monitored for correct application since it specifies how much fertilizer to apply in whatever condition.
  5. The ph level of 4-5 is best for Phosphate of Rocks’ effectiveness. Otherwise, the situation will be more like spraying spinosad on plants that don’t have insect problems.
  6. The fertilizer should be chosen carefully depending on the seed type. For instance, Phosphate of Rock is suitable for Seeds that have not been treated.


Question: What is soft Phosphate of Rock?

Answer: It is the softly and nicely ground Phosphate of Rock. Among the two types, it is the one that collaborates with the soil faster because of its dust-like texture.

Question: Which one will be a better option for tomatoes, Phosphate of Rock or bone meal?

Answer: Well both can be used. If your plant is in the early stages then it will be wise for you to choose Phosphate of Rock. If not, either of them can be used.

What is the purpose of bone meal?

Answer: Bone meal is utilized to strengthen your plant’s roots and promote speedy development. If the soil is deficient in protein or phosphorus, bone meal is utilized to compensate.


By now you’ve been enlightened with all this information on Phosphate of Rock vs bone meal. Congratulations on finding the perfect one for your soil and plant.

We’d love to hear what you have to say, so leave a comment below.

Thank you very much. Good luck with your gardening!!

The “bone meal vs triple phosphate” is a one-stop guide that will help you decide which fertilizer to use.

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