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Phos-Mag 8-19-10+5Mg Fertiliser 25kg

Availability: In stock

Promote Growth On Trees

  • Buy 5 for £26.00 (£31.20 inc VAT) each and save 11%
  • Buy 10 for £23.00 (£27.60 inc VAT) each and save 21%
  • Buy 20 for £19.99 (£23.99 inc VAT) each and save 32%
£34.80 Inc VAT £29.00 Ex VAT
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Product Description


LERAP Category  N/A

Active Ingredient  8% Nitrogen, 19% Phosphate, 10% Potassium, 5% Magnesium

Spreading Rate 50g per m2

Area Covered 500m2

Pack Size  25kg

Required Safety Equipment - Gloves


Phos Mag fertiliser is a quality mix of NPK specifically designed to promote growth on trees, hedges & woody perennial plants. This is a mini-granular blend fertiliser which offers an excellent spreading patten which will release the fertiliser over a 6 week period. It can be applied at any time of year providing the tree or plant is actively growing. To find out exactly what nutrients you may need, consider having a Soil Analysis done.

While this fertiliser is most often used on trees & shrubs, it can also be used in areas such as grass which are suffering from a deficiency in Potassium or Magnesium (phosmag).

The application rate will depend on how many times you will apply the product. If you require a detailed recommendation then please contact us.

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 8:19:10 contains:-

8% Nitrogen 19% Phosphate 10% Potassium 5% Magnesium

So in a 25kg bag:-

8% of the 25kg is Nitrogen i.e. 1.25kg N

19% of the 25kg is Phosphate i.e. 4.75kg P

10% of the 25kg is Potassium i.e. 2.5kg K

5% of the 25kg is Magnesium i.e 1.25kg Mg

For more information on Fertiliser rates visit


Our Recommendation

- If looking for an allround liquid fertiliser look at Nutri-gem Liquid

- For applying fertiliser over large areas look at our Pro Fertiliser Spreader

- If you require a tonic to aid stressed plants, look at Hort-booster

- Improve the pH of yoIur soil by applying Granulated Lime

Brand Nutrigrow
Pack Size 25kg
Application Method(s) Spread by Hand, Spreader
Area of Use Amenity Turf, Horticulture, Paddock, Pasture, Plants, Trees & Ornamentals
Safe For Use On Conifer Safe, Grass, Paddocks, Pasture, Safe Around Fruit Trees, Safe Around Shrubs, Safe Around Trees
Period Of Use All Year Round, Spring, Summer, Autumn, Winter

Application Rates

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