Gold Label Ultra PK is a flowering additive based on advanced polyphosphates and chelated trace elements. Ultra PK has been specifically developed to perfectly balance your NPK and micro elements in all stages of vegetative and generative development. The Ultra PK formula prevents phosphorus from depositing at pH levels>6.2, promotes availability of Ca, Mg and trace elements and keeps your drip lines clean. Use in combination with all Gold Label Base Nutrients, 0.5ml–1ml/litre. Never combine pure nutrients together, always mix in water. Shake bottles before use, store at room temperature.
Are you using Ultra PK for growing marijuana? Record it on your Grow Diary!
Looking to start using Ultra PK for Cannabis? Find the Lowest Price here!
Liquid (ml/l)
N-P-K / Micro-elements Nutrient
Non-Organic
Day-to-day Solution
How to Use Ultra PK
If you damaged the label or have not purchased the product yet, you can refer to the information found below to help you understand how to use Ultra PK. If you are mixing your own nutrients, you can reference the NPK chart found below to help you identify the role of this nutrient product. The recommended feeding schedule for can be found below to help you understand the correct measurements of nutrients to use. The feeding schedule chart has been provided by Gold Label, the product manufacturer.
Ultra PK NPK Chart
When combining nutrients, you will want to be conscious of their NPK contents as well as others. You can look at the contents of Ultra PK using the chart below.
Ultra PK Feeding Chart
Below you can find the recommended feeding chart provided by the nutrient company. To avoid hurting your plants, we recommend starting at a slightly reduced dosage and working up to the recommended dosage at a pace which you are comfortable with.
Gold Label Product Line
Take a look at complimentary nutrients which are also available from Gold Label. These products will compliment each other, or serve different purposes.
View all Gold Label Products
