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ProloNg 18-6-18+TE Slow Release 20kg

Availability: In stock

6 Month Release Fertiliser

  • Buy 5 for £39.00 (£46.80 inc VAT) each and save 8%
  • Buy 10 for £37.00 (£44.40 inc VAT) each and save 12%
  • Buy 20 for £35.00 (£42.00 inc VAT) each and save 17%
£50.40 Inc VAT £42.00 Ex VAT
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Product Description


LERAP Category  N/A

Active Ingredient  18% Nitrogen, 6% Phosphate & 18% Potassium

Spreading Rate 50g per m2

Area Covered 400m2

Pack Size  20kg

Required Safety Equipment - Gloves


Prolong 18-6-18+TE is a fertiliser which will release over a 6 month period. Allowing the plant to draw on available nitrogen over several month period is far more efficent & reduces the amount of nitrogen lost to the atmosphere. By releasing slowly over a long period it reduces the sudden surge of top growth usually associated with high nitrogen products.

If you require a product which doesnt release for quite as long, consider 18-3-8 Slow Release


Recommended Period of Use
Jan Feb
Mar Apr May
Jun Jul Aug Sep Oct Nov Dec
    leaf leaf leaf leaf leaf leaf leaf leaf    
leaf = Optimum time for application

Benefits of ProloNg™ include:

- Improved utilization and plant take up of applied Nitrogen
- Reduction in wasted Nitrogen resulting in improved cost efficiency and reduced environmental impact by:
            - Preventing volatilization
            - Slowing down nitrification
            - Preventing leaching
- Season long performance – recommend applying at 3 – 6 month intervals
- Comprehensive range formulations blended for use throughout the growing season
- Reduces unwanted growth flushes
- Reduces soft lush growth and disease susceptibility
- Protects water courses from nitrate pollution (less algae growth in ponds/lakes)
- Safe, reduced scorch susceptibility formulations
- Low salt formulations to improve root zone environment
- All formulations can be applied at any time of year when conditions allow
- New range of BioActive formulations adding life to your root zone
- Trace elements contained in some formulations (see list)
- Bespoke formulations available on request


*Please note, free delivery is only offered on fertiliser orders over £300 (ex VAT)*


Understanding Fertiliser Analysis

Under the metric system the unit of measurement is a kg

Recommendations are given in kg/ha

A fertiliser with the analysis 18:6:18 contains:-

18% Nitrogen 6% Phosphate 18% Potash

So in a 20kg bag:-

18% of the 25kg is Nitrogen i.e. 9.2kg N

6% of the 25kg is Phosphate i.e. 0kg P

18% of the 25kg is Potassium i.e. 0kg K

For more information on Fertiliser rates visit


 Our Recommendation

- If you require a liquid alternative consider Slow N

- Look at our Heavy Duty Spreader or Pro Fertiliser Spreader

- Improve the pH of your soil by applying Granulated Lime

Brand ProloNg
Pack Size 25kg
Application Method(s) Spread by Hand, Spreader
Area of Use Amenity Turf, Lawn, Sports Turf, Trees & Ornamentals
Period Of Use March, April, May, June, July, August, September, October, November, Spring, Summer

Application Rates

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