Green House Feeding – Booster 1kg
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Green House Feeding – Booster 1kg

Green House Feeding – Booster is a PK Booster by Green House Seeds which has been developed specifically to supply the plants during the flowering phase with the necessary amount of phosphor, potassium, and magnesium. Additionally, the Powder Feeding Booster contains lots of micronutrients, which the plants need to increase the flower production.



Booster PK+
NPK: 0-30-27

This additive is especially formulated to provide adequate amounts of Phosphorus, Potassium, Magnesium and micronutrients to increase the resin production and the formation and density of flowers.

The combination of Green House Powder Feeding, Calcium and Booster creates very professional, plant-specific line of nutrients for healthy and productive plants.

We added extra magnesium and trace elements to our PK Booster to avoid that they limit the uptake of phosphorus and potassium if the ratios are not balanced.

Plants can only perform to their full genetic potential if all elements are sufficiently available.

Maximum Solubility: 2.0lb/gal or 250g/L water
Recommended amount for stock solution: 4oz/gal or 30g/L water

Concentration of Elements:

30% [P₂ O₅] Soluble Phosphorus Pentoxide

27% [K₂ O] Soluble Potash Oxide

8.2% [M g O] Soluble Magnesium Oxide

0.03% [B]Soluble Boron

0.002% [Cu] Soluble Copper (as chelate from EDTA)

0.12% [Fe] Soluble Iron (as chelate from EDTA)

0.05% [Mn] Soluble Manganese (as chelate from EDTA)

0.005% [Mo] Soluble Molybdenum

0.01% [Zn] Soluble Zinc (as chelate from EDTA)


To be used WITH basic fertilizer

Week 3 and 4: 2-3g/10 l
Week 5 and 6: 3-4g/10 l
Week 7 and 8: 4-5g/10 l

“Balanced plant nutrition is essential to achieve high yields. If one of the essential plant nutrients is deficient, plant growth is limited to the amount of the lowest available nutrient, even when all other essential nutrients are abundant.

Furthermore, even if the least used nutrient is not present, the plant will not be able to take in all the other available nutrients, indicating that the elements used intrace amounts are as essential as the macro-nutrients.

The ‘Liebig barrel’ is used to demonstrate this principle.

The availability of the most abundant nutrient in the soil is only as good as the availability of the least abundant nutrient in the soil.

Liebig Barrel

Our Booster contains not only Phosphorus (P) and Potassium (K) but also extra Magnesium (Mg) and trace elements to ensure the nutrient content is balanced and there is no lack of any element that might limit the uptake of others.”

To keep every dose accurate our 10g dosage spoon is INCLUDED!


Data sheet

8 cm
17 cm
18 cm
1.02 kg
5 Items

Shipping & Returns


Nationwide courier delivery to any physical address within the Republic of South Africa. Some products may include free shipping. Product with free shipping will be indicated on Checkout Page

Due to size or weight, shipping restrictions may apply to certain products. We reserve the right to re-quote on delivery cost depending on your order size, weight, total order value and delivery location. Orders are shipped from Cape Town, Western Cape via nationwide courier services.

We reserve the right to re-quote on deliveries if the products ordered are coming from 3rd Party Suppliers and/or Market Resellers, if products ordered are large or heavy, or need to be delivered to areas not serviced by our regular courier companies.

If shipping restrictions apply please do contact us to confirm shipping costs.