based on 1415 reviews
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG
A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG

A1 Lawn Ultimate Spring Summer Lawn Fertiliser [10-4-4+3fe] - 10KG

Product Code: SPRINGSUMMER-10KG

Save up to 34%

Price £27.99 was £31.99


Our Ultimate Spring Summer Lawn Fertiliser feeds your grass with all the nutrients to boost your lawn back to life after winter, plus keep it lush & healthy throughout the drier warmer months. It is a specialised blend of compounds and minerals that helps give your lawn all the elements and nutrients it needs during the growing season. The high nitrogen content (NPK 10-4-4) improves your grass’ lush green leafy growth during Spring & Summer. With added Iron, Magnesium Oxide, Calcium Oxide and Seaweed.

  1. Nitrogen Rich to Improve Leafy Growth.
  2. With Iron, Magnesium Oxide, Calcium Oxide and Seaweed.
  3. Added Nutrients Makes Your Lawn Green and Lush.
  4. Boosts Your Lawn Back To Life After Winter.
  5. Professional Grade.

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£27.99
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£24.99
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£23.99
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£22.99
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5 - 9
£21.99
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£20.99
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This is a very high quality fertiliser with a specialised blend of compounds and minerals to help give your lawn all the nutrients it needs during the growing season.

  1. SPRING / SUMMER LAWN TREATMENT – Our in season ultimate fertiliser feeds your grass with all the nutrients to boost your lawn back to life after winter, plus keep it lush & healthy throughout the drier warmer months. We only use specific premium homogeneous granular products & is rigorously tested to guarantee the highest quality. Easy application, no mixing.
  2. NITROGEN RICH GRASS FERTILISER – The high nitrogen content (NPK 10-4-4) of our lawn feed will improve your grass’ lush green leafy growth during Spring & Summer. The Phosphorus aids healthy grass roots & shoots whilst the Potassium gives a strong, hardy & more durable grass, to give you an all year round great looking lawn.
  3. ADDED NUTRIENTS - The added iron helps to ‘green up’ your lawn. The magnesium makes photosynthesis more efficient, turning more sunlight to energy & making the grass more green and lush. The seaweed adds essential minerals & breaks down the soil which helps to release more nutrient content.
  4. BEST FOR THE UK CLIMATE – A1 Lawn ultimate fertilisers are freshly produced in the UK, professional grade & designed to work with the British weather. This ensures fast germination & delivers a strong & healthy lawn every year. Use March, April, May, June, July & August. Apply when showers are predicted or water in well.
  5. PROFESSIONAL GRADE –
  6. A1 Lawn has been delivering high quality certified grass & fertiliser direct to hundreds of thousands of satisfied domestic, professional and trade customers across the UK since 2010. If for whatever reason you are not entirely satisfied, simply contact us and we will endeavour to make it right. Certified by DEFRA, FERA & SASA

This product is a reportable substance for the purposes of the Poisons Act 1972 and the Control of Poisons and Explosives Precursors Regulations 2015(1).

Tony C

“Good fertilizer”

26 Oct 2022

Andy Cresswell

“Good products that deliver fantastic results!”

26 Oct 2022

Russell Everitt

“Quality in a bag. The professional choice with a beautiful appearance.”

26 Oct 2022

JB

“Brought the lawn to life”

27 Oct 2022

Jimbo

“Excellent product paired with A1 platinum without Rye, provides what the grass needs at that point in its cycles.”

27 Oct 2022

Christopher

“I was very happy with the results”

02 Nov 2022

Andrew Pestell

“Great product and my customers are always pleased. Price starting to creep up so please try to keep your prices competitive. Thx. ”

02 Nov 2022

Panagiotis

“Great product! My lawn loves it!”

02 Nov 2022

Jim Sheard

“Easy to apply, works well”

02 Nov 2022

John

“The Spring and Summer mix produced a healthy looking lawn that has remained looking good all summer with only one application. Many passers by have commented on how good the lawn looks. This has been achieved despite the challenging dry weather we experienced this Summer.”

02 Nov 2022

Mrs Rowland

“Excellent product and the company is very helpful if you need advice”

02 Nov 2022

Simon Aldous

“I always use A1 products, spring and summer fertiliser brings the grass back to life after afew days , would definitely recommend ”

19 Jun 2023

customer

“Works so much better than the hardware/garden centre brands”

20 Jun 2023

Jason

“Dramatic improvement in 7 days and has continued to look a richer green and thicker. Product appears to be continually working. Very pleased and will buy again”

20 Jun 2023

Mr Brian Green

“Been using this for a long time, excellent product.”

29 Jun 2023

Aaron Wheatley

“Amazing !! Second year using A1 products and I can definitely tell the difference ”

02 Jul 2023

Jenny

“Recommended by Greenaway’s Grass who had had excellent results so fingers crossed so will we”

03 Jul 2023

AHJ

“My lawn loves this product!”

07 Jul 2023

Christopher Blair

“Great product. Recovered a struggling lawn exceptionally well”

23 Jul 2023

Geoff G.

“Produces good (but not excessive) growth, keeps the lawn healthy and gives a lovely colour.”

17 Aug 2023

Silvana

“Im really happy with the fertiliser, as my grass was going yellow, after one week of the application it went greener and thicker, and now is already a month , it looks healthy, green, and thick . I do recommend the A1 spring summer lawn fertiliser.”

21 Aug 2023

Emyr Jones

“My go to fertiler, everywhere lush green after application”

22 Aug 2023

Robin Hatton

“Mrs H's lovely lawn My wife, Mrs H, loves keeping the front garden looking lovely. Very often passer-by's will ask her how do you keep the lawn looking so good ?. Each spring we aerate the lawn using the spiked boots which creates holes for drainage and also let's the air and fertiliser to the grass root. This is followed with a spreading of A1 Lawn Spring and Summer weed and feed fertiliser. Some weeks later we go over the lawn with our lawn-rake to remove the dead thatch and any weeds. In September each year we feed the lawn with A1Lawn Autumn Winter fertiliser to provide the lawn with goodness to help it cope with what the Winter throws our way. A1 Lawn products helps our lawn look good throughout the year and keeps it heathy. ”

22 Aug 2023

Howard Neil

“Excellent for keeping your grass looking green and healthy, I will be purchasing more of this product ”

22 Aug 2023

Colin Paviour

“Easyb to apply wth a wheeled spreader”

24 Aug 2023

SB

“Great Product would 1000% recommend ”

26 Aug 2023

Les Reeves

“Excellent granules all same size easy to spread greens lawn in 7 days grass thicker and grows even. Used before, great. ”

03 Sep 2023

Gabriel

“Great product from a great company! Will always be a customer for the company as they have an incredible range of quality products for my lawn maintenance needs”

04 Sep 2023

Miss Stephanie Mochan

“Fantastic product, made a huge improvement to my grass. Definetely recommend ”

05 Sep 2023

Radoslaw Prazmowski

“Great product! ”

08 Sep 2023

Kevin Ellis

“I have never found a product this good.”

10 Sep 2023

John West

“Did what it said on the tin.”

12 Sep 2023

Lea Simms

“Yet again A1Lawn delivered the fertiliser in rapid time. Customer service and products are by far the best on market. Thank you again ”

12 Sep 2023

Nial & Louise

“This really works. Grass is growing well. ”

19 Sep 2023

Eddie Minghella

“Does a great job”

21 Sep 2023

customer

“All I can say is wow! I’m a bit obsessed with my lawn and I stopped using a well known lawn company to treat it as their prices have gone through the roof. I put this on my lawn and within 3-4 days I could see a difference. Within 10 days it was thick and lush. All of the little gaps had closed up and I’m having to mow it twice every 10 days. 100% recommend”

24 Sep 2023

Mr Peter Norris

“Haven't used this purchase yet but previous purchases of the product have always been very impressive, I'm sure this will be the same. ”

18 Feb 2024

Ms O'Donoghue

“A1 products never disappoint. Expensive but worth it. ”

22 Mar 2024

Barney

“Not used this latest batch but used the same last year with great results ”

25 Mar 2024

David Tasker

“Good lawn feed, Feeds lawn steadily without burning provided it is watered in if no rain is expected.”

30 May 2024

Mr Kevin Levitt

“Grass is looking a lot stronger & greener Grows really quickly That might be current weather trends I will definitely be using the product agian”

31 May 2024

Mr Rustagi

“It really helped to boost the grass growth and made it greener.”

02 Jun 2024

Alfred Beable

“Great fertiliser my grass is looking nice and green now”

04 Jun 2024

Steve Murphy

“Good lawn fertiliser.”

05 Jun 2024

M K

“It appears to have worked, although my lawn does look a little patchy despite using a spreader”

09 Jun 2024

Mr Max Simmons

“Excellent product- best I've ever used. Helped restore my worn out lawn to a green swathe!”

13 Jun 2024

Tim Seebold

“Far better than the stuff from major retailers! This stuff works great! Worth the extra cost!”

15 Jun 2024

Robert Jessop

“prompt service and delivery”

20 Jun 2024

Mr Melville

“Really effective”

23 Jun 2024

Mark d

“Best product on the market by mile wouldn’t buy anything else from anywhere else ”

25 Jun 2024

Captainsguard

“Good quality and value .”

12 Jul 2024

customer

“Does what it says on the pack.”

16 Jul 2024

Yvonne

“Great product, does exactly what you want. ”

19 Jul 2024

R M

“You have tried the rest, now buy the best product around. ”

20 Jul 2024

Customer

“A little expensive but worked well. Small granules make it easier to disperse and water-in.”

21 Jul 2024

mikier1964

“I have used this product for two earlier seasons with great effect, thus a third season. However this time, very poor results. Not sure if its weather related. Based on the latest experience and the cost of the fertiliser will probably source an alternative elsewhere. Used the autumn mix last winter. Excellent results. ”

22 Jul 2024

Andy T

“Great fertiliser, highly recommended ”

23 Jul 2024

Duncan Lamont

“My lawn always looks much healthier after treatment and last far longer than some alternative brands I have used. With the lawn constantly in use by our 2 dogs and typical British weather treating the lawn with summer and winter fertiliser keeps it in tip top shape. ”

02 Aug 2024

Mr andrew coley

“Great product greens the lawn well”

02 Aug 2024

John

“Good quality lawn feed that produces a healthy looking lawn”

02 Aug 2024

Howard Neil

“Once applied You can see the difference within a week, lush and green ”

07 Aug 2024

customer

“Moved house znd the laen was full of weeds and grass was not growing, 2 applications of A1 lawn feed and the difference is phenomonal, weeds are gone and the grass grows so quickly its now a weekly cut This product is worth every penny ”

09 Aug 2024

Anonymous

“I can see the difference in my lawn, it did what I wanted it to do. ”

14 Aug 2024

Simon Aldous

“Excellent product,brings the lawn back to life”

15 Aug 2024

Brenda Cooper

“Good service and quick delivery”

21 Aug 2024

Mr mark jenkinson

“Your a bit of joke I never received the product wrong address on packaging.emailed you asking were it was sent on back saying you would give me my money back.Two month and several emails later still no refund.Shame as I would of like to give your product a try as it has good reviews.”

29 Aug 2024

Ian Bird

“All I would say is it just works. Only thing I would say is the dosage seems a lot per m2”

01 Sep 2024

Martin B

“Brilliant stuff!”

10 Sep 2024

We pride ourselves on providing a fast and efficient delivery service throughout the UK with our shipping partners. Our delivery timescales are based on the order being placed and confirmed by 12 noon on Monday to Friday (excluding Bank Holidays).

Standard Delivery Standard Delivery - £2.99, FREE for orders over £50, and we aim to deliver within 3-5 business days
Express Delivery Express Delivery - £4.99 for orders of any value, and we aim to deliver these within 1-2 business days
Express Delivery Scottish Highlands - £9.99 for orders of any value, and we aim to deliver these within 3-5 business days
Scottish Delivery Other UK Islands - £24.99 for orders of any value. Please allow an extra 3-5 business days

Scottish Highlands include AB31-56, FK17-21, IV1-40,52-54,63, KW1-14, PA21-40, and PH15-40,49-50. 
Other UK Islands include BT, HS, IM, IV41-51,55,56, KA27-28, KW15-17, PA20,41-88, PH41-44, TR21-25, ZE and ZZ.
We currently do not deliver outside the UK, including British Overseas Territories.







Returns Information More Details
For full details visit our Delivery & Returns page. 

Nitrogen 10%
Phosphorous 4%
Potassium 4%
Calcium Oxide 8%
Magnesium Oxide 4%
Iron 3%
Seaweed

Sowing rate: 35g/m2
Coverage: 10kg = 280 m2

SASA/FERA certified

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