Best Summer Lawn Fertilisers of 2026
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Summer is the perfect time to enjoy your garden, but maintaining a lush and healthy lawn can be a challenge. That's where summer lawn fertilisers come in. These products are designed to provide the nutrients your lawn needs to thrive in the warmer months, promoting healthy growth and strong roots. With a variety of options available, including organic and synthetic fertilisers, you can choose the best one to suit your needs and budget. Using a summer lawn fertiliser can help you achieve a beautiful and vibrant lawn that you can enjoy all season long.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 9 Summer Lawn Fertilisers
A1 Lawn Ultimate Spring Summer Fertiliser 10kg
The A1 Lawn Fertiliser is designed to rejuvenate your lawn after winter and maintain its health during the warmer months. With a high nitrogen content, it promotes lush, green growth, making your grass look vibrant. The added phosphorus strengthens roots and shoots, while potassium ensures a hardy and durable lawn. Additionally, this fertiliser includes iron and magnesium, enhancing photosynthesis and overall greenness. It's easy to apply, requiring no mixing, making it a convenient choice for every gardener.
Elixir Gardens 9-7-7 Lawn Fertiliser for Spring & Summer
The Elixir Gardens 9-7-7 Fertiliser is a granular lawn and turf feed designed for spring and summer use. It features a higher nitrogen level, promoting robust grass growth, ensuring your lawn remains lush and green. With one 20kg bag covering up to 570 square metres, it offers great value for larger areas, including sports fields and horse paddocks. This versatile fertiliser is perfect for both garden lawns and borders, simplifying your lawn care routine and enhancing your outdoor space.
Elixir Gardens Spring & Summer Lawn Fertiliser
The Elixir Gardens Lawn Fertiliser is a premium, compound product that ensures even nutrient dispersal for maximum lawn coverage. With a high nitrogen level, it promotes robust grass growth, while its moderate potassium content helps your lawn resist diseases and drought. The inclusion of 2% iron effectively treats moss and deters broad-leafed weeds, enhancing the overall health of your lawn. Additionally, the added magnesium boosts chlorophyll production, resulting in a lush, vibrant green lawn that you can be proud of.
A1 Lawn Ultimate Spring Summer Fertiliser 20kg
The A1 Lawn Ultimate Fertiliser is a nitrogen-rich feed designed to restore your lawn after the colder months. It promotes lush, green growth thanks to its high nitrogen content, while phosphorus strengthens roots and shoots for better overall health. Potassium enhances your lawn's durability, helping it stay healthy throughout the year. Additionally, nutrients like iron, magnesium, and seaweed provide extra benefits such as greener colour and improved soil quality. This fertiliser is perfect for the UK climate and easy to apply, making it ideal for maintaining a vibrant lawn in spring and summer.
Elixir Gardens Spring & Summer Lawn Food
The Elixir Gardens Lawn Food is a premium granular fertiliser designed to provide your lawn with essential nutrients for optimal growth. Its compound formula ensures even dispersal, promoting maximum coverage across your lawn. With a high nitrogen content, it encourages rapid grass growth, while moderate potassium levels help your lawn resist diseases and drought. Additionally, the 2% iron content assists in treating moss and preventing broad-leafed weeds, ensuring a healthier lawn overall.
Nutrigrow Pro Lawn Fertiliser 20KG for Spring/Summer
The Nutrigrow Pro Fertiliser is designed to enhance your lawn with its effective nutrient balance. It offers a longevity of six weeks, ensuring that your turf remains nourished throughout the season. You can expect a noticeable response from your grass within just seven days, making it ideal for quick results. With granule dispersal taking an average of four to five days, you can easily apply it and see improvements without delay. This fertiliser covers an impressive area of up to 570m², perfect for larger gardens.
Elixir Gardens Spring & Summer Lawn Fertiliser 10kg Tub
The Elixir Gardens Lawn Fertiliser is a premium, compound product designed to ensure even nutrient distribution and excellent coverage for your lawn. It contains a high level of nitrogen, which encourages healthy grass growth, while the moderate potassium content helps your lawn resist disease and drought. Additionally, the 2% iron content aids in treating moss and deters broad-leafed weeds, keeping your grass looking tidy. The added magnesium boosts chlorophyll production, resulting in a lush, green lawn. Its micro-granular form makes it easy to spread by hand or with a conventional lawn spreader, offering convenience for any gardener.
Proctors Spring and Summer Lawn Food 20kg
The Proctors Lawn Food is a 20kg bag of Spring and Summer lawn fertiliser designed to nourish your grass effectively. With a chemical composition of 11-5-5, it provides essential nutrients for healthy growth. This product can cover an impressive 571 square metres of lawn, ensuring you have ample supply for larger areas. Additionally, it helps combat moss, promoting a lush and vibrant lawn. Using this fertiliser can lead to a greener and more robust garden.
Elixir Gardens Lawn Food with Iron and Magnesium
Elixir Gardens Lawn Food is a premium granular fertiliser designed to provide your lawn with essential nutrients for healthy growth. The high nitrogen content promotes vigorous grass growth, while the moderate potassium level helps your lawn resist diseases and drought. With a 2% iron content, this product effectively tackles moss and inhibits common weeds. Additionally, the included magnesium boosts chlorophyll production, resulting in a lush, vibrant lawn. Its micro-granular formula ensures easy application either by hand or with a spreader.
Frequently Asked Questions (FAQs)
1. What number fertilizer should I use in the summer?
Apply fertilizer to high traffic areas with a 32-0-4 mix. This will feed your lawn throughout the summer, strengthening grass blades, enabling them to recover faster from heat and drought.
2. What should I put on my lawn in the summer?
Your lawn care company should use a fertilizer that's formulated for summer feeding. Properly applied, summer lawn fertilizer helps your lawn withstand the heat and drought conditions of summer. Experts recommend fertilizing cool season grasses in the spring and the fall, and warm season grasses in the midsummer.
3. What type of fertilizer should I use in July?
Nitrogen is a critical ingredient for new grass growth, which makes it a crucial element of any fertilizer that you buy for your lawn. Therefore, the best fertilizer to use in August and July should have appropriate nitrogen levels.
During our summer lawn fertiliser research, we found 106 summer lawn fertiliser products and shortlisted 9 quality products. We collected and analyzed 11,081 customer reviews through our big data system to write the summer lawn fertilisers list. We found that most customers choose summer lawn fertilisers with an average price of £20.76.
The summer lawn fertilisers are available for purchase. We have researched hundreds of brands and picked the top brands of summer lawn fertilisers, including A1Lawn, Elixir Gardens, Nutrigrow, F&G Supplies.
Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.