10 Best Lawn Fertilizers in 2023 [Child and Pet Safe]


Lawn fertilizers are essential for keeping your grass green and healthy. There are a variety of options available, so find one that is right for your lawn and garden. Some common ingredients in lawn fertilizers include nitrogen, phosphorus, potassium and sulfur. Choose the right fertilizer for your specific needs and be sure to give it a good watering after installation to help it take effect.

Best Overall
1
4.9
envii Safe Pet Friendly Liquid Lawn Fertiliser

envii Safe Pet Friendly Liquid Lawn Fertiliser

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  • Improves both grass and soil health
  • Visible results within 7-10 days
  • Biostimulant that acts as a stress support system
  • Completely safe for pets and children
  • 1 Litre bottle covers 300m2
Best Runner-Up
2
4.8
Total Lawn Fertiliser

Total Lawn Fertiliser

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  • RAPID GREEN UP ✅ Our lawn feed delivers a high dose of nitrogen to green up your grass and improvement your lawn in as little as 3 days.
  • LAWN THICKENER ✅ Our unique NPK granular fertilizer gives the the existing grass a boost of life and encourages new growth.
  • IMPROVES SOIL HEALTH ✅ Total Lawn granular feed and fertiliser releases nutrients in to the soil to re-balance the PH.
  • FEED AND MOSS CONTROL ✅ An instant hit of Iron Sulphate destroys moss and helps suppress most common garden weeds.
  • WATER IS VITAL💦 Once our feed is applied please ensure that your lawn receives plenty of water. You can do this with a hose or apply just before rain is expected. Our Spring and Summer feed needs to soak in to the soil before it can begin to work. No water means no results.
Best Quality
3
4.7
A1 Lawn Ultimate Spring Summer Lawn Fertiliser

A1 Lawn Ultimate Spring Summer Lawn Fertiliser

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  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
Best Value for money
4
4.6
GUARD-EN-FORCE Lawn Fertiliser

GUARD-EN-FORCE Lawn Fertiliser

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  • EXTREMELY POWERFUL, HIGH QUALITY PREMIUM 3 in 1 FORMULA. Iron Sulphate is an Iron rich and long lasting fertiliser that will encourage strong growth and healthy dark green grass.
  • Easy To Use: FERTILISER and LAWN GREENER - Coverage of 1 Kilogram approx 500 to 1000 square metres for LAWN GREENING. CAN BE APPLIED WET or DRY. The easy open and close clip top tub means this is easily stored in optimum conditions. Gives grass and lawns a fresh, healthy dark green colour quickly.
  • USED AND TRUSTED BY DISCERNING GARDENERS. Used by domestic gardeners, professional green keepers, lawn keepers, park keepers, sports grounds men etc for perfect pitches, green lawns, and superior golfing greens. Sulphate of Iron is used as a lawn greener and a lawn conditioner by many discerning home users across the UK to improve their grass quality.
  • HELPS TO PREVENT LAWN DISEASE. Our thoroughly researched and developed, tried and tested formula gives grass sensational colour and even helps to prevent lawn disease with its turf hardening qualities.
  • HIGH QUALITY GRADE IRON SULPHATE. There Are Different Grades of Iron Sulphate Available. This is a Fine Powdered Grade. It is Superior quality and Has Twice The Coverage of the Damp, Industrial, or Crystal Grade.
Easy to spread
5
4.5
Botaro Lawn Fertiliser

Botaro Lawn Fertiliser

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  • 20kg sack of Lawn Feed, Weed and Mosskiller
  • Formulated by Proctors, one of the best known brands in the UK
  • This bag will treat 625 square metres
  • Micro granular formula for better performance
  • A cost effective micro-granular fertiliser for control of moss and weeds, including broadleaved weed species, while feeding grass for a lush green lawn.
Best with Recyclable packaging
6
4.4
Miracle-Gro Lawn Fertiliser

Miracle-Gro Lawn Fertiliser

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  • 50 percent Thicker Lawn in 30 days
  • Mixture of hard wearing grass seed & special formula soil improver
  • 100 percent Natural Formula - Child & Pet Friendly
  • Feeds you lawn for 3 months
  • Recyclable packaging, contains 40 percent recycled plastic
Promotes A Health Root System
7
4.3
Ivisons Seed Lawn Fertiliser

Ivisons Seed Lawn Fertiliser

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  • Why Choose Ivisons Pre Seed Fertiliser - Ivisons Pre Lawn fertiliser is a proven mix that helps the soil get the nutrients it needs to help your new lawn establish quickly and stay healthy. When your lawn is healthy from the very beginning, it will repel weeds and resist disease. It also improves soil quality, therefore, root development. Ensure your lawn has the best possible start – Don’t leave your lawn to chance!
  • Homogeneous Mix - This fertilizer is made up of homogenous granules, this means that each granule has the same nutrient analysis to ensure an even spread of nutrients across the sown area. With Cheaper blended fertilisers, the analysis is represented in the bag rather than each granular, which leads to an uneven spread of nutrients. Using a Blended fertiliser can lead to a patchy lawn, parts of your lawn may grow quicker than others and the colour of the grass may differ throughout.
  • Phosphorous Rich Pre Seed Fertilizer - This phosphate-rich fertiliser will provide your seedbed with the best foundation for establishing new seedlings as phosphorus aids healthy grass roots and shoots. The potassium content will help the grass become strong and hardy, fighting off any diseases that seedlings are susceptible to. The nitrogen will give your lawn the desired rich green look we all desire. Ivisons pre grass seed fertiliser can also be used as a lawn tonic to green up your lawn.
  • How To Apply - Ivisons high quality granules allow for instant application without needing to mix the product with water. You can either spread your fertiliser by hand or by using a spreader. Spread 3-5 days before sowing, making sure you've watered the granules thoroughly so they can dissolve and the soil can soak up all the nutrients. Treatments must be At least 6 weeks apart. Only apply during the growing season, normally April to October. Application rate - 35g per square meter.
  • Customer Service – If at any point - for whatever reason - you’re unhappy or have any questions about our Pre Seed fertiliser, don’t hesitate to contact us! We’ll do our very best to ensure your satisfaction.
Easy to use
8
4.2
Nutrigrow Pro Compound Lawn Fertiliser

Nutrigrow Pro Compound Lawn Fertiliser

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  • 6 Weeks Longetivity
  • Turf response within 7 days
  • Granule dispersal takes on average 4-5 days
  • Ideal balance of NPK to strengthen turf
  • Covers up to 570m²
Best for Child and Pet Safe
9
4.1
Lawn Gold Organic Based Lawn Fertilizer

Lawn Gold Organic Based Lawn Fertilizer

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  • Organic based Lawn Fertilizer
  • Child and Pet Safe
  • Fast and slow release fertilizer tecnology to green your lawn up to 6 weeks
  • Indirect Action Against Moss
  • No Raking Out Of Moss Required
Cheapest Option
10
4
Maxicrop Organic Lawn Natural Fertiliser

Maxicrop Organic Lawn Natural Fertiliser

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  • LAWN FERTILISER: An organic lawn fertiliser with added seaweed extract that brings out the best in your lawn
  • LAWN CARE: Improves the look and quality of your lawn, with greener grass and stronger roots
  • STRENGHTENING: Helps your lawn become more hard-wearing, and able to cope better in dry conditions, making it Ideal for homes with children and pets
  • HOW TO USE: Apply every 4-6 weeks during the growing season for best results
  • ORGANIC: Approved and certified for organic growing by OF&G


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