For Sales & Advice Call 01522 246491

More Views

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
Accepted payment methods

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.

*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 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

Application Rates

Similar Products