5 Best Lawn Fertilisers UK You Can Buy Right Now To Have A Lush Green Lawn

best lawn fertilizers uk

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In this review, we will provide you with the 5 best lawn fertilisers UK market has to offer and the buyer’s guide will make you able to understand the right product for your lawn. 

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Best Price
Miracle-Gro EverGreen Complete 4in1 2.8kg - 80m2
A1Lawn, 10Kg Pre-Seeder Fertiliser (6-9-6) - 285 Sq Metres
Westland SafeLawn Child and Pet Friendly Natural Lawn Feed 80 m2, Green, 2.8 kg
Best Choice
Miracle-Gro EverGreen Autumn Lawn Care 14kg, Nylon/A
Scotts Lawn Builder Lawn Food 2kg - 100m2
Title
Miracle-Gro EverGreen Complete 4in1 2.8kg - 80m2
A1Lawn, 10Kg Pre-Seeder Fertiliser (6-9-6) - 285 Sq Metres
Westland SafeLawn Child and Pet Friendly Natural Lawn Feed 80 m2, Green, 2.8 kg
Miracle-Gro EverGreen Autumn Lawn Care 14kg, Nylon/A
Scotts Lawn Builder Lawn Food 2kg - 100m2
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132 Reviews
380 Reviews
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Miracle-Gro EverGreen Complete 4in1 2.8kg - 80m2
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Miracle-Gro EverGreen Complete 4in1 2.8kg - 80m2
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A1Lawn, 10Kg Pre-Seeder Fertiliser (6-9-6) - 285 Sq Metres
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A1Lawn, 10Kg Pre-Seeder Fertiliser (6-9-6) - 285 Sq Metres
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Westland SafeLawn Child and Pet Friendly Natural Lawn Feed 80 m2, Green, 2.8 kg
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Westland SafeLawn Child and Pet Friendly Natural Lawn Feed 80 m2, Green, 2.8 kg
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Best Choice
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Miracle-Gro EverGreen Autumn Lawn Care 14kg, Nylon/A
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Miracle-Gro EverGreen Autumn Lawn Care 14kg, Nylon/A
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Scotts Lawn Builder Lawn Food 2kg - 100m2
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Scotts Lawn Builder Lawn Food 2kg - 100m2
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Last update on 2020-10-24 / Affiliate links / Images from Amazon Product Advertising API

Waking up to a lush green lawn is eye-soothing and the most satisfying movement to kick off the day. The best fertiliser is the one that can take care of all the stresses that your lawn faces throughout the year.

If you are in a hurry, you can quickly jump to the following table and view the top 5 best lawn fertilisers UK market has to offer:

Product N-P-K valueCoverageweightLatest Prices on Amazon
Miracle-Gro complete 4 in 114-5 (N-K)35 g/sq meter3 kgCheck priceOpens in a new tab.
A1Lawn Fertilizer 6-9-6 NPK35g/sq meter10 kgCheck priceOpens in a new tab.
Westland pets friendly lawn fertilizer7-3-535g/ sq meter2.8 kgCheck priceOpens in a new tab.
Miracle-Gro Autumn lawn fertilizer6-5-10 NPK35g /sq meter14 kgCheck priceOpens in a new tab.
Scott lawn builder fertilizer22-5-5 NPK35 g/sq meter2 kgCheck priceOpens in a new tab.

Lawn fertilizer can serve different purposes such as killing weeds and mosses, treating nutritional deficiencies, fighting soil stresses etc.

All of these characteristics depend on the composition or formula of the fertilizer. Killing weeds and mosses permanently isn’t possible so you always need a follow-up session to keep the lawn free from weeds and mosses. 

On the other hand, if you want to treat the nutritional deficiencies to grow a thicker and greener turf, an extend-release granular fertilizer will do the job in one hit. But in order to treat the lawn with the right combination of NPK, you have to identify the deficiency of a particular element.

How?

We will discuss this in the buyer’s guide at the end of this article. 

best lawn fertilizers uk

Best Lawn Fertilisers UK

Now, let’s review the 5 best lawn fertilizers available in the market:

Miracle-Gro EverGreen Complete 4in1 

Miracle-Gro offers a complete solution to your worries about growing a perfect lawn. You can have a thick, green and healthy lawn in just a few days by introducing this fertilizer to your lawn. 

In addition to the texture and greenery, you will get rid of the mosses and weeds as it kills them effectively. Weeds have a bad company effect on the lawn grasses as they share food, water and nutrients, so getting them out of the game is necessary. 

The WaterSmart Formula in this fertilizer helps the lawn grasses to absorb water and nutrients effectively and fight the drought and other stresses which are always a potential threat to the lawn grass. 

It is enriched in Nitrogen, phosphorus. With potassium incorporation, it helps the roots to grow stronger which ultimately enhance the water and nutrients absorption. 

In just two weeks you will see mosses saying goodbye to your lawn, while it takes at least 3-5 weeks to get rid of weeds, so be patient for that. You can use 35 gm per square meter, while this bag is 3 kg so quite affordable in terms of price.

You can use a spreader for even distribution and For better results use twice a year with 3 months interval

Main Features 

  • Lawn thickener
  • Kills weeds
  • Kills moss
  • Potassium enrichment for stronger roots
  • Package Dimensions: 7.3 x 19.3 x 29 cm ; 4.54 g
  • Weight : 3 kg 

Pros

  • Green, thicker and healthy lawn 
  • Increase resistance against drought, heat and other stresses
  • WaterSmart formula and rich NP formula 

Cons

  • Attracts birds and squirrels 
  • A couple of users complained about weeds regrowth after some time

A1Lawn Fertiliser

This lawn fertilizer is specially formulated as a pre-seeder fertilizer that helps in germination and enhances root growth of a newly grown lawn.

The grass seeds need a rich nutrient soil and all the biological boosters to grow a thick, green and healthy first batch of the grass carpet. 

It is a perfect formula for a soil with low nutrients index with thin grasses. Phosphorus rich formula does two things i.e building strong roots and helping in fast germination. It has a 6-9-6 ratio of N-P-K. 

It can be used as lawn tonic in any season or throughout the year for better texture and thick grass.

It takes one week for the results to appear. You can use a spreader for an effective and even distribution. The application rate is 35 g per sq meter which can determine your need and required package.

This 10 kg bag can cover 285 sq meter area. A good fertilizer which is free from toxic chemicals and doesn’t disturb domestic aroma at all. 

Main Features

  • Pre-seeder fertilizer
  • Helps in germination and roots building 
  • Phosphorus rich formula 
  • 6-9-6 ratio of N-P-K
  • Can be used as lawn tonic
  • Weight: 10 kg 

Pros

  • More quantity in a single package and affordable as well
  • Best for nutrients deficient and new lawn with seeding or pre-seeding session 
  • Helps in decreasing drought and other stresses

Cons

  • Package doesn’t contain enough information about formula, use and precautions 

Westland Child and Pet-Friendly Natural Lawn Fertilizer

This fertilizer is harmless for pets and kids. The sources of this formula are organic which makes it safe for domestic use. It provides all the essential nutrients to the lawn grass for both spring and summer season.

It has a 7-3-5 value of N-P-K. By incorporating iron it decreases the chances of staining and scorching. 

The granules of this fertilizer break down quickly and provide nutrients to the lawn. It supports the natural flora of microorganisms in the soil and doesn’t disturb the environmental ladder.

The beneficial bacteria will turn the leaves and dead mosses into active nutrients. 

With enough nitrogen and addition of grass seed, it creates a thicker and greener lawn within one week.

The grass seed will fill the gaps which will make the lawn texture better and thicker this will beat the weeds in competition. 

This one pack of fertilizer can cover up to 80 m2 of the area of your lawn. It has a slight smell and the reason is obvious organic sources but it can fade in just a day or two as the granules dissolve into the soil.

For better results a session after every 3 weeks in spring and summer will make your lawn thicker and lush green. 

Main Features

  • 7-3-5 Value of N-P-K
  • Organic sources 
  • Micro-granular formula 
  • Coverage: 35 g/ sq meter
  • No staining and scorching 
  • Quick-release of ingredients from granules 
  • Package Dimensions: 10 x 20 x 30 cm 
  • Weight:  2.8 kg 

Pros

  • Kids and pets friendly 
  • No staining and scorching
  • Addition of seed helps in filling gaps and increase the lawn thickness 

Cons

  • A slight farmyard kind of odour but, for organic fertilizer something need to be sacrificed 
  • Two users complained about the  package, which was damaged during shipment, Ask for a return policy before purchasing 

Miracle-Gro EverGreen Autumn Lawn fertilizer 

Lawns turn pale and grasses get weak in winter. This is the fertilizer to give your lawn greener and thicker life in the winter season. It is a 6-5-10 formula of N-P-K. Potassium helps to build stronger roots which can withstand the cold winters.

It toughens the lawn three times more than conventional fertilizers. 

It has additional seaweed to enhance lawn growth. It can kill mosses within 7 days and in just two weeks will get you rid of the dead mosses.

The use is simple but after applying make sure you keep the pets and kids away for a day or two until the granules get dissolved completely because iron sulphate can cause stains if you walk before it dried. 

The ideal time to apply this is around September and November to recover lawn from summer and make it prepare to fight the winter. You can apply it as 35 g per sq meter and this package is big enough to cover 400 m2 of the lawn. 

Main Features

  • Kills mosses in the autumn season
  • 6-5-10 formula of N-P-K 
  • Potassium incorporating builds stronger roots
  • Added seaweed
  • 7 days- fast action 
  • 35 g per sq meter coverage (400m2 coverage with this package
  • Package Dimensions: 51 x 32 x 10 cm
  • Weight: 14 kg 

Pros

  • Toughens grass to withstand harsh winter
  • Strengthen roots
  • Easy use 
  • Kills mosses within just one week
  • Good packaging compared to many other

Cons

  • It doesn’t kill weeds

Scotts Lawn Builder Lawn Fertilizer

Want something sustainable or slow-released form? Here you go with this lawn fertilizer from Scotts. It has a slow-release formula which keeps releasing nutrients at a slow pace and maintains a greener and thicker lawn for eight weeks. It is the 22-5-5 formula of N-P-K.

The water-smart formula is added for a better performance after application.

It turns the lawn green within one week, however, the better annual scheduling will yield better results. You can apply it in march and September to grow a thicker and lush lawn throughout the year.

It doesn’t contain any scorch fertilizer, so no need of watering in. 

Majority of the lawn fertilizers have complained of surge growth but Scotts lawn builder overcame this issue and you will have no surge growth. The slowly releasing granules will feed nitrogen and other essentials to grasses evenly, without any abrupt enrichment of nutrients which leads to sudden overgrowth followed by a fall and deficient phase.

A 2kg bag of this fertilizer is enough for 100 m2 area of the lawn, however, it is always recommended to use a spreader for better results and even distribution. You can expect High performance, great potency with no toxic effects by using this lawn fertilizer. 

Main Features

  • Slow-release formula 
  • 22-5-5 N-P-K 
  • Turns the lawn green and thicker within 7 days
  • WaterSmart Formula 
  • Coverage: this package of 2 kg is enough for 100 m2
  • No scorching fertilizing 
  • No surge growth 
  • Dimensions: 7 x 18 x 26 cm 
  • Weight: 2 kg 

Pros

  • No scorching and no need to water in
  • Provides feeding for 8 weeks approx
  • Maintain high-performance turf
  • Easy to spread and use

Cons

  • You need two applications at least for the required results 

Buyer’s Guide for Best Lawn Fertilizer UK 

If you have decided to go for a lawn fertilizer then hang on a bit, and understand some of the basic things that you must take into account before placing an order. 

What is NPK? 

For sure, you must have noticed the N-P-K value mentioned on the fertilizers package. Let’s break it down for you. It is a short reference to Nitrogen-phosphorus and Potassium. 

Nitrogen helps the grass to stay green and healthy, Phosphorus provides strength to roots and enhances the overall root building process while Potassium helps the plants to fight drought, heat and other stresses. Based on this NPK value, you can determine what formula suits your lawn.

In other words, you can first diagnose the problem of your soil and then choose the right medicine i.e a lawn fertilizer. Moreover, other essential nutrients also play a vital role e.g Iron can treat your pale and yellow grass turn green but the main formula to be focused on is NPK. 

Nature of your lawn soil and grass

It is the first step to prescribe the right fertilizer for your garden or lawn. So what is it? Understand your soil and do a soil test (usually every two-three year) in any nearby soil testing laboratory. It will give you the nature of the soil i.e pH and nutrients facts. Based on this diagnosis, you can select the right combination of N-P-K and other additives to address nutritional deficiencies. A blind application may not work and you will blame the product. 

Granular Fertilizer vs Liquid Fertilizer

Granular fertilizers are mostly spread with the help of a mechanical spreader for even distribution. Most of the lawn fertilizers these days are in granular form. There are two types of dry granular fertilizers.

  • Quick-release granules:  Also known as water-soluble nitrogen (WSN). It releases the nitrogen content quickly to feed the lawn. On average, this kind of fertilizer stays for three to four weeks but can vary depending on the weather conditions. 
  • Slow-Release granules: These are known as water-insoluble nitrogen (WIN). they are further divided into two types, based on the coating which makes them extendedly released form. Polymer-coated granules are more sustainable and can last for 12 weeks while sulfur-coated granules can provide nutrients for eight weeks at least. 

On the other hand, Liquid fertilizers are fast-acting and you will be required to apply it every two to three weeks for better results. They may be concentrated or diluted, so a conc-liquid fertilizer should be diluted according to your need and mentioned guidelines. Liquid fertilizers are mostly used for raised beds and containers, however, you can use them in lawns as well. 

Organic or Synthetic?

Organic fertilizers have natural sources for its making i.e Peat moss, bat guano, fish emulsion, compost, cottonseed and blood or a bone meal etc. unlike synthetic the results take few weeks to appear as they work on a slow pace but there is no environmental threat with them. 

Synthetic fertilizers are manufactured from different minerals, gases and other supporting waste sources. Synthetic fertilizers yield quick results.  If you use it in slight overdose it may burn your grass, so you need to be accurate with the formula. There is an environmental threat if they make their way to the local water. 

Maintenance Level 

There are different fertilizers based on their mechanism of actions and numbers of application per year. If you are using a fertilizer which mainly focuses on weeds and moss killing, you would probably need multiple sessions every 4-6 weeks. There are fertilizers which are specifically formulated for the autumn season to help the lawn withstand the harsh climate of winter which needs two applications between Sept- Nov. 

If you want something to maintain the nutritional values, choose a slow-released dry granular form to avoid multiple applications. One way or another, always follow the maintenance level accordingly to have a thick, green and healthy lawn.

Conclusion

If you are struggling with weeds and mosses and looking for a suitable fertilizer, choose Miracle-Gro complete 4in 1Opens in a new tab. for a weedless greener and thicker lawn. But in case you want a pre-seeder fertilizer to help the new lawn grow overnight, go for A1Lawn Pre-seeder FertilizerOpens in a new tab. which has a great reputation in germination and fast root’s building process. 

That being said, you are still required to do your calculations by cross-matching the features of fertilizer with the problems you want to address. We hope this guide was helpful for you in understanding the right product for your lawn. 

Good luck with buying it!

Noah Burns

I am Noah Burns- The Guy behind I will Make You Smart. I love to experiment and test new products with an aim to create informative contents for readers like you. It is my aim to make this site a leading source of information and reviews to help consumers make more informed buying decisions.

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