Miracle-Gro Performance Organics All-Purpose Concentrate Plant Food, A Review

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Name of Product: Miracle-Gro Performance Organics All-Purpose Concentrate Plant Food.

The Best Place to Buy: www.amazon.co.uk

Product Dimensions: 6.3cm x 11.5cm x 27.7cm

Shipping Weight: 1.36kg.

In this article, we will be reviewing Miracle-Gro Performance Organic all-purpose concentrate plant food to see if it is all it’s cracked up to be. As you can imagine I got excited when Miracle-Gro released another new product that works together with its granular feed, which has been reviewed here. Like its granular feed, it is a 100% natural. An organic product made out of plant-based material, which for a liquid-based fertilizer is a novel product.

Like in my review of granular feed, the manufacturer claims that the product will double the size of plants in 7 days. It is true as well-fed plants will grow larger but then again over-fertilizing can be dangerous. It can burn the roots and cause the leaves to turn brown, not an attractive look. This is why applying the right amount of fertilizer at the right time is very important.

Can applying a fertilizer double a plant size in 7 days? I think the answer to this question is so dependent on the plant growing. Some plants are quick growers, whilst others grow much slower, What is important is that the plant looks healthy, producing plenty of blooms and the leaves look green and the plant looks well.


This product is a quick pick me up for plants that are not looking too well. If it is used regularly then the plants will respond and look stunning. The granular feed is suitable for a longer-term application, whilst the concentrates are more designed for instant results.

You can use the granular feed at the beginning of the growing season, whilst switching to liquid-based fertiliser after 6 weeks when the plants have consumed all the granular fertiliser. You have the option to just use the granular feed or the liquid feed or you can use both carefully. It is not recommended to use both products at the same time, as the will certainly be over-fertilizing the plant and will do more harm than good.

Petunia make ideal upright and trailing plants
Petunia make ideal upright and trailing plants fed by liquid fertilizer

All that has been said about Performance Organics in my article about the All-purpose Granular feed applies here. It is organically made from plant-based material and no animal-based product is used at all. It is bee, pet and child safe and is the perfect solution for organic gardeners and vegans.

What is unique about this product is that the plastic container the product comes in with is made out of 100% recycled plastic. In this way, the product inside and the container is both environmentally friendly. As with the granular feed, it is a new product and so we do not know how it will perform during the growing season. This article will be updated at the end to bring you updated results.


This is a concentrated fertilizer that is diluted before applying around the base of plants. This product is recommended for use when plants already in position in the ground or containers need to be fed. It cannot be used to feed empty ground or containers. That is the main difference between granular feed and liquid feed, where granular feeds tend to be used for larger areas than the specific liquid fertilizer that are used around existing plants.

Compared to the granular feed, there is more diluted in the terms of the amount of nitrogen, phosphorus and potassium. This is expected because granular feed releases their nutrients slowly and over 6 to 12 weeks. This means only 2 to 4 application is required per growing season, whilst the diluted liquid concentrate is applied every 1 to 2 weeks. At this application rate, the dosage has to be lower.

The nitrogen (N), Phosphorous (P) and Potassium (K) ratio are 4:1.5:4. This corresponds to nitrogen of 4 %, phosphorus pentoxide of 1.5% and 4% of potassium oxide. This is equivalent to an actual NPK ratio of 4: 0.56:3.3, so it is not high nitrogen, high phosphorus or potassium feed.

You can see it as adding the nutrients over a short period and you do not want to cause a build-up of salts over time. This can cause plants problems. This will result in less chance of over fertilising and burning the roots and leaves. This is why between reapplying the fertilizer that any salts building up is washed out by watering with tap or rainwater.

This is comparable to other liquid-based fertilizer concentrates.


  1. Firstly, you will need to shake the bottle well to re-dissolve any sediment. Secondly, add the product to the cap using the dosage recommended in the next section.
  2. Tip the cap into the watering can and then mix it with water, ensuring the product and water is mixed well. What I tend to do is use a bamboo cane as a stirrer for the product and water to be mixed well.
  3. You can then apply the water around the base of the plant, making sure the plant is not overwatered.
  4. You can use it on fruits, vegetables and ornamental plants, indoors and outdoors. It is recommended to start feeding when the plants start to grow in early spring all the way up to late summer when the plants start to go dormant.


  • For houseplant and herbs, apply ¼ cup per litre of water, once every week.
  • For plants in containers, ½ cup per litre of water, once every week.
  • Plants in soil, ½ cup per litre of water, once per week.
  • For tomato/potato/petunia/geraniums feed every week, apply a capful per litre of water.
  • For carrots/salads/impatiens/antirrhinums feed every 2 to 3 weeks, apply a capful per litre of water.

Do not keep any diluted mixture that remains as it will not keep.

A product that can be used throughout the growing season. To be safe I would not use the granular and liquid fertilizer at the same time. You can use the granular feed at the beginning of the season and after 6 weeks you can then start to use the liquid fertilizer to continually feed your plants. You can then see how the products can complement each other.


  • A product that can give your plant a quick boost.
  • For your buck, you get a lot of product. A 1-litre concentrate can make up to 200 litres of product.
  • Environmentally friendly in terms that the product does not use any harmful products in its manufacture and that the container it comes in is made from 100% recycled plastic. It can then be recycled again.
  • Child, pet and bee safe. What more can you ask?


  • It is a new product and not truly tried and tested yet.


As said earlier this is a product new to the market, so I can only imagine how it lives up to expectation. It is recommended to use if you plant needs a quick pick me up as it looks unhealthy.

If you use it throughout the growing season, I can imagine your plants will look healthy, full of blooms, or fruits. How healthy we will have to find out later in the growing season, I will keep you updated to see if my plants benefit when using this product at the end of the growing season.

If you want to try this product and give me your feedback then you can buy it here.

If you have any comments or questions that you wish to make, please do so in the comment box below.

Happy gardening.


12 thoughts on “Miracle-Gro Performance Organics All-Purpose Concentrate Plant Food, A Review”

  1. I love this review as it has everything you need to know, when it comes to the product you are reviewing. From basic specification, to how to use it properly, pros, cons and much more. I am not so much of a gardener, but my grandmother is and I will be recommending this product to her. 

    1. Hi Baki

      Thank you very much for your kind comments and I hope your grandmother gets a lot from it. It would be good to see to get her feedback to see if her conclusions match my own.

      Kind regards 


  2. Hello, Antonio

    This was really clear and well written. 

    It’s always good to know about new products in the market. 

    The pros and cons you listed are very helpful in knowing what to expect. 

    Thanks for making it clear that different plants needed different doses. 

    It’s easy to give a plant too much plant food by accident.

    Best wishes, 


    1. Hi Cameron 

      Thank you for your kind words and do hope you do use the product in the garden. If you do, please give me feedback. 



  3. I grow all my plants in containers. This year they do not seem to grow nicely. Let’s why I am looking for some plant food that will give them a quick boost.

    I will give this product a try since it is environmentally friendly, child, pet, and bee safe.

    Thank you for the information.

    1. Hi Christine

      Do try the product and give me feedback  to know how you got on with the product  I think you will not be disappointed.

      Kind regards 


  4. Hello there, thanks a lot for sharing this wonderful piece of information here with us. I must say i really did enjoyed going through your article. After going through your review i think it would must likely not be a bad idea to give it a try for a quick pick up so i think i will be getting one to test it out.

    1. Hi Philebur

      it would be great if you did buy this product and you can give me feedback on how you found the product. I hope it leaves up to your expectation.



  5. Wow! This is an amazing article that you have got here. Miracle-Gro performance organics seems to offer great benefit to plants since its feed is suitable for a longer-term application and the concentrates are more designed to get instant results in plants. Does the granular feed has any side effect or is it just a perfect blend for plants? 

    1. Hi Awinikistevie

      Thank you very much for your input and I am glad you got a lot from it. The granular feed has no known side effects and so does the liquid concentrate feed. As mentioned in the article the product is made from plant based produce and therefore not harmful to animals, children or bees. It is still too early to know if it is an excellent product  but why don’t  you buy it and give me feedback on it.

      Kind regards 


  6. Hello thanks for this very detailed and informative review. I understand that for a post as comprehensive as this, alot of conscious, calculated and deliberate effort have been put in bringing this together. I actually heard about miracle gro from a friend and decided to do some research about it, he never mentioned it was a new products, but thanks for giving a clearer view on it. 

    1. Hi Jomata

      Thank you very much for your opinion on Miracle-Gro Concentrate Plant Food and as it is a new product then the jury is still out. I think it holds promise as a liquid fertiliser but we will have to wait to see if it lives up to the promise.

      Kind regards 


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