Label Change UK

CANNA Label Change

23 August, 2016
Product Updates
In order to remain current with label requirements for product registration, CANNA has slightly adjusted the back of the product labels. The labels are the only thing that will change. Nothing has changed to the products.

The European Union (EU) has changed their label requirements for plant nutrition products. According to the EU all labels should fulfill the Globally Harmonised System of Classification and Labelling of Chemicals (GHS). All labels should fulfill these regulations as per the 1st of June 2017.

Same product, adjusted label

As a result of all this, CANNA elected to do a full label review and change of our entire label line in which these things were addressed. The labels look fundamentally the same, the guarantee stays the same, but the notification of the NPK numbers has changed and warning signs are added where necessary.

Even though the labels have changed, all products remain exactly the same as before, absolutely no changes have been made.

Below an overview of the label changes:

  • Warning signs are printed on the back label where necessary
  • Notification of the ingredients.
    The EU- and UK fertiliser regulations require that all nutrient contents need to be calculated in mass/mass percentage. When CANNA introduced PK13/14, we used the standard way to state the NPK content. This expressed the amount of nutrient in fertilisers as a percentage of their mass compared to their volume (mass/volume percent). The current regulations requires CANNA to change the conversion to mass/mass percent (grams/kilograms).


The changes to the label, added warning sign and notification of the ingredients.

For example CANNA is required to state the mass percentages of the contents of PK13/14, therefore resulting in a NPK of 0 – 11– 12. It is the same product, just a different way of stating the percentage of the nutrients, as 0- 11 – 12 in mass/mass percentage is exactly the same as 0 – 13 – 14 in mass/volume percentages

So let us look at the same example of PK13/14 using both the old and the new methods. Bear in mind there is 130g of Phosphor and 140g of Potassium in 1 litre of PK 13/14 that each litre of solution has a total weight of 1214g.

Old regulatory method:

  • Mass/Volume (grams/litre)
  • Phosphorpentoxide (P2O5): 130/1 =130
  • Potassiumoxide (K2O): 140/1 =140
  • Therefore the NPK percentage is 0 -13 -14

New Regulatory Method

  • Mass/Mass (grams / Kilogram)
  • 130/1.214 = 107
  • 140/1.214 = 115
  • Therefore the NPK percentage is 0 – 11 – 12

* The two part nutrient have the total amount on the bottle and the content of that specific bottle as well. It used to be the total amount of the whole set only!
* Address details and phone number are mandatory to communicate on a label and are added to the label.