Buy Lawn Fertiliser UK
Buy professional lawn fertiliser online — NPK granular feeds, slow-release formulas, liquid foliar treatments and lawn sand 25kg. Season-matched for UK lawns, trusted by groundscare pros since 1951.
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Why Choose Professional-Grade Lawn Fertiliser?
Consumer lawn feeds from garden centres rarely match the precision, coverage or longevity of commercial-grade products. Here's why professionals choose Ransley Pro Grow.
Slow-Release Formulas
Nutrients released over 6–16 weeks for consistent, even growth without scorch.
Professional Grade NPK
Precise nitrogen, phosphate and potassium ratios designed for UK turf conditions.
Trusted by Groundscare Pros
Used by sports pitch managers, landscapers, and golf course groundskeepers.
Suitable for All Grass Types
From fine ornamental lawns to paddocks, pasture and sports surfaces.
Our Lawn Fertiliser Range
From spring NPK granulars to autumn root hardeners and liquid foliar feeds — we stock the full professional range.
Spring-Gem 14-3-10 Foliar Fertiliser 10L
Spring-Gem 14-3-10 Foliar Fertiliser 10L Fully water soluble. Suitable for use on amenity turf, lawns, paddocks, pasture and sports turf. Compatible with certain pesticides and moss killers. Faster response time compared to granular fertilisers. Great value for money - one bottle covers up to 1ha or 10,000m². Easy to use and store - no bulky granular fertiliser. Can be used from March to October, or whilst grass is actively growing. Full Description Spring-Gem® is a fully water soluble foliar
Nutrigrow Feed, Weed & Moss Killer 20kg
Nutrigrow Feed, Weed & Moss Killer 20kg Suitable for use on lawns and sports turf. 4 in 1 easy application – greens grass, kills a range of weeds, kills moss in your lawn and fertilises the grass. Offers effective control over common weeds such as daisy, plantain, dandelion and clover. Contains ferrous sulphate to kill moss quickly and fertilise the grass. Mini-granule formulation (1.0-2.5mm). Can be used all year round. Full Description Nutrigrow Feed and Weed is a compound fertiliser with
Nutrigrow 18-3.5-8+1Mg Phased Release Fertiliser 20kg
Nutrigrow 18-3.5-8+1Mg Phased Release Fertiliser 20kg Suitable for use on lawns, paddocks, pasture, sports turf and trees and ornamentals. Active ingredients released over a 12-16 week period. Avoids rapid growth and scorching. Mini-granular compound formulation provides excellent spreading pattern. Full Description Nutrigrow Phased Release 18-3.5-8+1Mg is an organic-based, high-quality NPK fertiliser which is ideal for treating amenity areas such as lawns and sports pitches. This product is ide
Nutri-Gem® 15-15-15 Foliar Fertiliser
Nutri-Gem® 15-15-15 Foliar Fertiliser 5L Fully water soluble. Provides stress relief to targeted plants. Faster response time compared to granular fertilisers. Compatible with most herbicides / pesticides. High quality formulation containing macro and chelated micro elements. Great value for money - one bottle covers up to 1.75ha or 17,500m². Easy to use and store - no bulky granular fertiliser. Full Description Nutri-Gem® is a 15-15-15 NPK water soluble suspension containing a unique package of
Ferro-Gem Liquid Iron
Ferro-Gem Liquid Iron Full Description Ferro gem® is a 6% straight iron which is used to green and toughen up grass. This product can be used all year round, although it is particularly useful during the colder months as it will help strengthen the plant against frost and disease. The active ingredient, iron, is absorbed by the leaf giving rapid results. This product is ideal for treating large areas such as horse paddocks & amenity areas. Whilst ferrous sulphate is not harmful or hazardous,
Emerald Pro Seaweed
Emerald Pro Seaweed Improves quality and yield of crops. Aids recovery of crop after periods of stress. Contains a wide range of nutrients, vitamins and amino acids. Approved for use on amenity turf, ornamentals, glasshouse crops, soft fruit, cut flowers and salads. Full Description Emerald® Pro is a concentrated seaweed extract manufactured from Ascophyllum Nodosum Algae harvested from the Atlantic Ocean. It is organic, natural and highly effective in optimising growth conditions for maximum qu
Autumn-Gem 4-2-16 Foliar Fertiliser 10L
Autumn-Gem 4-2-16 Foliar Fertiliser10L Fully water soluble.Suitable for use on amenity turf, lawns, paddocks, pasture and sports turf.Compatible with certain pesticides and moss killers.Faster response time compared to granular fertilisers.Great value for money - one bottle covers up to 1ha or 10,000m².Easy to use and store - no bulky granular fertiliser.Can be used from August to November, or whilst grass is actively growing.Full DescriptionAutumn-Gem® is a fully water soluble foliar NPK fertil
9-7-7 Nutrigrow Spring / Summer Pro Compound Fertiliser 20kg
9-7-7 Nutrigrow Spring / Summer Pro Compound Fertiliser 20kg 6 weeks longevity. Turf response is seen within 7 days. Granule dispersal takes on average 4-5 days. Ideal balance of NPK to strengthen turf. Granules provide ease of application and an even distribution. Releases slowly over a 6 week period- avoids rapid top-growth. Ensures even growth, quality and colour over the whole area and prevents the unsightly specking effects. Versatile application rates, as low as 35g per m² enabling one bag
9-7-7 Nutrigrow Spring / Summer Blend Fertiliser 20kg
9-7-7 Nutrigrow Spring / Summer Blend Fertiliser 20kg 6 weeks longevity. Turf response is seen within 7 days. Granule dispersal takes on average 7-10 days. Ideal balance of NPK to strengthen turf. Economical blended fertiliser for lawns and fine lawns. Releases over a 6-week period- avoids rapid top-growth. Versatile application rates, as low as 35g per m² enabling one bag to cover 570m² making them very economical. Full Description Nutrigrow 9-7-7 Spring / Summer Fertiliser is the perfect choic
UK Lawn Fertiliser Seasonal Guide
Apply the right product at the right time for a healthy, resilient lawn year-round.
Spring
Mar – May
High-nitrogen feeds (e.g. 10-4-4, 9-7-7) to kick-start growth after winter. Apply at 50g/m² in mild, moist conditions.
Summer
Jun – Aug
Maintain with a balanced NPK or slow-release product (e.g. 18-3.5-8 Phased Release). Avoid applying in drought.
Autumn
Aug – Oct
Low nitrogen, high phosphate & potassium (e.g. 3-12-12 Autumn Turf Pro) to harden roots before winter frosts.
Winter
Nov – Feb
Avoid feeding frozen or waterlogged turf. Iron-based products (e.g. Lawn Sand, Ferro-Gem) can be applied in mild spells.
About Our Professional Lawn Fertilisers
Ransley Pro Grow has been formulating and supplying turf nutrition products to UK professionals since 1951. Our fertiliser range is relied upon by golf course greenkeepers, sports pitch managers, landscape contractors and homeowners who want measurable results rather than vague promises.
Ready to buy lawn fertiliser online? We stock the best lawn fertilisers in the UK — from high-nitrogen spring feeds and phased-release summer granulars to low-nitrogen autumn hardeners and iron-rich lawn sand 25kg bags for moss control. Every product carries a declared NPK analysis so you know exactly what you're applying, and our free Fertiliser Calculator works out the right quantity for your lawn area.
Each product carries an exact, declared NPK analysis — giving you complete control over what goes into your turf and when. Our granular compounds range from mini-prill formulas (1–2.5mm) for fine ornamental lawns through to coarser blended granules suited to paddocks, playing fields and larger amenity areas.
For situations where speed matters, our water-soluble foliar feeds deliver nutrients directly into the leaf tissue, bypassing slow soil uptake entirely. These are particularly effective on compacted ground or when you need to see results in days rather than weeks.
Every product in the range ships quickly across the UK. Bulk order discounts and trade credit accounts are available — contact us to discuss terms suitable for your business.
Lawn Fertiliser FAQs
Common questions about buying and applying professional lawn fertiliser in the UK.