Best Phosphorus Fertilizer : In-Depth Review and Buying Guide!

Introduction

Whether you want to grow a better lawn or have better plants, phosphorus is something you can’t avoid. Even though phosphorus can harm the environment, using it in small chunks is absolutely fine.

But turns out it’s not that easy to find out the best phosphorus fertilizer in the market.

That’s why we prepared this in-depth review where we handpicked some top of the line products for you. Here we’ll show a head-to-head comparison between the fertilizers.

We’re doing it all because we want to help figure out the perfect fertilizer for you. So, without wasting another minute, let’s start the process-

Comparison of Our List of Best Phosphorus Fertilizer

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1. Miracle-Gro Water Soluble Bloom Booster Flower Food

Miracle-Gro Water Soluble Bloom Booster Flower Food

We’re starting off our list with the Miracle-Gro Water Soluble Bloom Booster Flower Food. If you’ve been gardening for some time, you already know about Miracle-Gro and it’s products.

Their Bloom Booster holds its reputation for that. This liquid fertilizer is one of our favorite fertilizers. Even though it’s a liquid fertilizer, you only have to apply it every 2 weeks.

During that time, it’ll continue to nourish your plants. And the end results come even sooner. In 4-5 days, you’ll notice that your plants have better growth and the flowers starting to bloom.

But the thing we liked most about is the formulation. For someone who was looking for the perfect phosphorus fertilizer, this product was amazing.

After using it for some time, the results were astonishing. So, if you need phosphorus in your soil, you can take a look at this product.

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  • Feeds for up to 14 days
  • 5 lbs cover up to 600 square feet
  • Ensures better color for plants
  • Full of phosphorus
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  • Need to apply frequently
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2. Jobe’s Organics Bone Meal Fertilizer

Jobe's Organics Bone Meal Fertilizer

Next up, we have the Jobe’s Organics Bone Meal Fertilizer. This is in fact the first organic fertilizer on our list of products.

When you’re thinking about fixing a phosphorus deficiency in the soil, you can’t forget about bone meals. These things are made from 100 percent organic materials that provide nutrients for your plants.

In this fertilizer, the formulation is 2-14-0, which basically means that there are 2 percent nitrogen, 14 percent phosphorus, and 15 percent calcium.

For ensuring the proper root growth and plant color, this formulation is more than enough. But the most interesting part is, it doesn’t require frequent applications.

Once you use the fertilizer, it can nourish the plant for up to 3 months. That’s 3 months of not having to worry about fertilizers.

Apart from that, the fertilizer was made in granules for ease of use. So, all you have to do is put the fertilizer in the soil and it’ll do its job for 3 months.

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  • Phosphorus filled fertilizer with other nutrients
  • Provides food for up to 3 months
  • Easy to apply
  • Ensures proper root growth
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  • Takes some time to work
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3. Burpee Organic Bone Meal Fertilizer

Burpee Organic Bone Meal Fertilizer

Why did we add another bone meal fertilizer on our list? You see, bone meal fertilizers are great when it’s about organic sources of nitrogen, phosphorus, calcium, and potassium.

These key ingredients provide all the necessary nutrients a plant needs. From promoting root growth to better-blooming flowers, this fertilizer does it all.

But hey, want to know the best part about this fertilizer?

You don’t have to apply it that often. Similar to other bone meal fertilizers, it can give food to the plant for a long time.

However, you should try to apply it in the early season when the roots are starting out. That way the plants will have an extra boost for better growth. Eventually, you’ll get better results.

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  • OMRI listed for organic gardening
  • Works great for bulbs
  • Gives young plants the boost they need
  • Provides food for a long time
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  • The bag isn’t resealable
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4. Espoma RP7 Rock Phosphate

Espoma RP7 Rock Phosphate

You might’ve seen Espoma fertilizers in your local garden center or greenhouse. But have you ever thought about the quality of these products?

Well, let us brief you about that. You see, Espoma has been improving its fertilizer game stronger and stronger every year. With the Espoma RP7 Rock Phosphate, they really went overboard.

In this fertilizer, they used pure mined phosphate rocks that have 32 percent phosphate in them. They sized up the rocks into a usable form for plants. And the end results speak for themselves.

Anyone who wants a phosphorus fertilizer that’s filled with the element can surely buy this product. And that’s even more important if you have a flower garden.

You see, the pure phosphate in this fertilizer actively promotes flower bloom rate along with the boosted root development. So, flower lovers, this one’s for you guys.

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  • Pure phosphorus mined from natural deposits
  • Has a rich formulation of 0-3-0
  • Pelletized for ease of use
  • Accelerates flower growth rate
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  • A bit expensive
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5. Voluntary Purchasing Group 32115

Voluntary Purchasing Group 32115

Finally, let’s talk about the Voluntary Purchasing Group 32115. You might not have heard about this brand, we didn’t know about it too.

But after trying it out in our garden, we were quite impressed with the results. The fertilizer does exactly what it says. It promotes root growth and increases the flower blooming rate.

Before this product, our plants were suffering from discoloration. But after a month of using this, the plant suddenly got back its life.

Now it has better roots and growth. As people say, don’t judge a book by its cover. In conclusion, we can assure you that this fertilizer won’t disappoint you.

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  • 4 pounds of fertilizer can cover up to 50 feet
  • Quite easy to use
  • Helps in growing healthy roots
  • Price is expensive
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  • Might take a while to see visible results
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Why Is Phosphorus Important for Plant Growth?

The role of phosphorus in plants is very important. It allows a plant to transform other nutrients into functional components so that they can grow.

Phosphorus is among the three primary nutrients most commonly present in fertilizers and is the “P” in the NPK balance of fertilizers.

Phosphorus is vital for plant growth, but what does that really say if you have excessive phosphorus or phosphorous deficiency in your root system?

Phosphorus shortage in the soil

Is there any way you can tell if a plant’s suffering from phosphorus shortage? Well, the easiest way to do that is to check the plants properly.

If you see that the plants aren’t getting bigger, being unable to produce flowers, and have a poor root system, you know that they’re suffering from a phosphorus shortage.

As most people grow plants in their gardens for fruits and flowers you know how important it is to balance the phosphorus rate in the soil.

There are a number of chemical fertilizers that can help to balance the phosphorus shortage. They’ll also add extra nutrients to your plant’s overall growth.

However, getting chemical fertilizers, make sure to get one that has a higher ‘P’ value. As a matter of fact, the ‘P’ in the NPK fertilizer rating is phosphorus.

On the other hand, there’s another option if you want a more natural approach to fixing the phosphorus shortage. There are organic fertilizers such as bone meal or rock phosphate for solving that.

Both of these are equally good. Although a lot of times, the plant allows itself to gather the phosphorus that’s already in the soil. So, before you try out any other experimental things, try this method first.

Nonetheless, you shouldn’t go overboard no matter which method you use to add phosphorus to the soil. In case you didn’t know, phosphorus can be quite dangerous for the environment.

Excessive phosphorus in the soil

This might sound weird but in reality, it’s quite difficult for a plant to absorb excessive phosphorus. They just don’t have that capacity.

Finally, all we have to say is without phosphorus a plant won’t be able to grow. But that’s only for the start. After it’s fully grown, there’s no need to add it.

Buying Guide

Now that you have the basic idea of what phosphorus does for a plant and the products for it. It’s time to know what things to look out for when you choose the right phosphorus fertilizer. Let’s start-

Know what the numbers mean

We’ve all seen the numbers on fertilizer bags. The fertilizer material ratio, also known as the NPK ratio stands for the basic elements a plant needs.

These are nitrogen, phosphorus, and potassium. If you see a fertilizer has a ratio of 7-9-5, it means there is 7 percent nitrogen, 9 percent phosphorus, and 5 percent potassium.

But why are these elements essential for a plant?

Well, nitrogen makes sure that the plant stays green. While phosphorus helps in the root development process. On the other hand, potassium protects the plant from drought and various diseases.

Depending on the area you live, you’ll need one element more than the other. Your soil and the area you live in plays a huge role in this matter. So, before you try out anything, test your soil.

Choose your type

Once you find out the combination, you need to figure out what type of fertilizer you want. You’ve got 2 options, one is chemical fertilizers and the other one is organic fertilizers.

Chemical fertilizers are obtained from various minerals, gas, and waste that can deliver faster results with their nutrients. The only problem with chemical fertilizers is that they have a tendency of burning the plants if used heavily.

Other than that, there are environmental impacts too. But at the end of the day, they work the fastest.

On the other hand, you have organic fertilizers. These are often produced from living organisms. From cottonseed, peat moss to blood, bone meal, there are a number of ways you can get these.

However, they do make you wait for some time. So, if you want to see the results, you’ve got to give it a few weeks.

Nonetheless, the environmental impacts are far less than chemical fertilizers. At the end of the day, you won’t be damaging mother nature.

Pick your formula

Finally, you have to pick what formula you want. Generally, you have 2 ways you can go. You can either go for liquid fertilizers or you can choose granular fertilizers.

However, there are a few differences between these two. You see, liquid fertilizers need to be mixed with water as these are basically powder. So, each time you apply a little and the frequency needs to be a bit high.

Moreover, you’ll always have the risk of contaminating the local water supply of your area. Liquid fertilizers can pose some serious threat to the local aquatic organisms.

Although we have to admit that it’s the quickest way to see results. After 4 to 5 days of applying, you’ll see that the plant is showing increased growth.

On the other hand, granular fertilizers are slow-release fertilizers that work for a long time but they do it slowly. Even the results can take up to a month to show.

Nonetheless, it’s way better in terms of health risk. You don’t have to use these that often and the results are fine too. So, unless you have a hurry, you should opt for slow-release fertilizers.

A final word

So, that’s all we had to say about our list of the best phosphorus fertilizer. Before we go, we have one final piece of advice for you.

We all know plants need phosphorus for proper root growth and everything. But you should never overdose phosphorus fertilizers as these have the potentiality to harm the environment. Happy gardening!

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