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5-0-29 Nutrigrow High-K Fertiliser 20kg

5-0-29 Nutrigrow High-K Fertiliser 20kg

Regular price £52.80
Regular price Sale price £52.80
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SKU 1316
Brand Nutrigrow
Active Ingredient 5% nitrogen, 0% phosphate, 29% potassium, 4% iron, 2.5% magnesium
Pack Size 25kg
Pack Size Coverage 500m²-2000m² (depends on rate)
Granule Size 1-2.5mm (Midi)
Spreading Rate 20-50g per m²
Application Method(S) Spread by Hand, Spreader
Area Of Use Amenity Turf, Horticulture, Lawn, Paddock, Pasture, Plants, Sports Turf, Trees & Ornamentals
Safe For Use On Conifer Safe, Grass, Lawns, New Grass, Paddocks, Pasture, Safe Around Fruit Trees, Safe Around Shrubs, Safe Around Trees, Sports Turf
Period Of Use Spring, Summer, Autumn
MSDS Download

High K is a quality fertiliser which is ideal for areas requiring a large amount of potassium (K). Although this product is mainly used in paddocks & pasture, due to its compound mini-granule formulation it is also suitable for lawns, sports turf & amenity areas.

This product can be used at higher rates for correcting potassium deficiencies, or used as a general feed which will slowly release the fertiliser over a 6 week period. High K contains a high level (29%) of potassium. Potassium is a vital macronutrient for plants, grass and trees; as well as regulating CO2 uptake during photosynthesis, potassium also regulates water, produces ATP and activates growth related enzymes. Alongside potassium, High K also benefits from low levels of nitrogen, magnesium and iron which all also contribute to the health of plants.

The application rate will depend on how many times you intend to apply the product and also what the grass is going to be used for. If you require a detailed recommendation, please contact us or take a look at our soil testing kit. Apply either by hand or through one of our applicators.

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 5:0:29:4Fe:2.5Mg contains: 5% nitrogen, 0% phosphate, 28% potassium, 4% iron(Fe), 2.5% magnesium.
  • So in a 25kg bag: 5% of the 25kg is nitrogen i.e. 1.25kg N, 0% of the 25kg is phosphate i.e. 0kg P, 29% of the 25kg is potassium i.e. 7kg K, 4% of the 25kg is iron i.e. 1kg Fe, 2.5% of the 25kg is magnesium i.e. 0.75%.
  • For more information on Fertiliser rates visit

Key Benefits:

  • Suitable for paddocks, pasture, lawns, sports turf and amenity areas.
  • Mini-granule compound formulation.
  • Corrects potassium deficiencies when used at high rates.
  • Also contains magnesium and iron.

Our Recommendation:

  • Always read the product label before use.


By law, everyone who uses pesticides professionally must have received adequate training in using pesticides safely and be skilled in the job they are carrying out." Upon purchasing this product you and/or the end users are responsibile for ensuring that these products are used in line with industry Approved Codes of Practice. All operators must be trained and certificated in using and applying any Ministry Approved Professional Product (MAPP). Use plant protection products safely. Always read the label and product information before use. Please be aware that by proceeding you are purchasing a professional pesticide product. You must ensure the end user of these products complies with the DEFRA/HSE Code for the Safe use of Pesticides. There are legal responsibilities covering the storage and use of professional use pesticides. These responsibilities are covered by The Food and Environment Protection Act 1985 (FEPA) and Control of Pesticide Regulations 1986 (COPR).

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