Green House Feeding – Long Flowering 500g
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Green House Feeding – Long Flowering 500g


NPK: 18-12-18

The balanced NPK ratio provides enough nitrogen throughout the whole stage of flowering and the high amounts of phosphorous allow the plants to develop a strong and healthy root system, especially for plants with a long flowering time more than 10 weeks.

Maximum Solubility: 1.3lb/gal or 160g/L water
Recommended amount for stock solution: 4oz/gal or 30g/L water


Concentration gram per Liter             0.5       1.0       1.5       2.0
EC (mS)                                                0.7       1.4       2.0       2.6

These values are calculated starting from tap water with medium hardness with EC 0.0

NOTE: For optimum results, use in conjunction with Green House Feeding Calcium

Concentration of Elements:

18% [N] Total Nitrogen
              Nitrate Nitrogen 10%
              Ammoniacal Nitrogen 8%

12% [P₂ O₅] Soluble Phosphorus Pentoxide

18% [K₂ O] Soluble Potash Oxide

2% [M g O] Soluble Magnesium Oxide

0.02% [B] Soluble Boron

0.04% [Cu] Soluble Copper (as chelate from EDTA)

0.1% [Fe] Soluble Iron (as chelate from EDTA)

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

0.01% [Mo] Soluble Molybdenum

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

“Boron, being one of the trace elements is only needed in tiny amounts, but it is essential for plant functions such as the formation of pollen tubes, balancing the amounts of sugar and starch inside the plant and helping to transport Potassium ions inside the cell membranes. Boron is not mobile in plants because it bonds to sugar molecules.”

How to use

Green House Powder Feeding can be used on every medium.

However, the feeding schedule is slightly different and if using anything other than soil we recommend using a PH-meter and EC-meter in order to achieve the desired values and have full control over your feeding solution.

Easy Grower

If you grow on pre-fertilized soil, we recommend starting using Powder Feeding 2-4 weeks after planting the seeds and to start with a mild solution (0.25g per Liter).

During the vegetative stage you can increase the feeding up to 0.5g per Liter.

With the beginning of the flowering stage you should slowly increase the amount of Powder Feeding until you reach 1g per Liter.

Following this schedule, there should usually be no problem and growers will achieve a good yield.

Experienced Grower

Experienced growers usually measure their feeding solution to provide the plants with the exact amount of nutrients and the correct pH value of the solution.

Whether you grow in coco, hydroponics or aeroponics – with all of these systems you should measure your pH and EC values.

When using a pH and EC meter you can optimize your growing and achieve much better results.

Steps of mixing nutrient solution:

1. A) Check pH and EC value of the water and make sure the temperature is about 18-22     degrees Celsius. You should also check if your water contains enough Calcium.

B) If your EC is 0,0 (using RO or rainwater) you need to add Green House Feeding Calcium to your water before adding Powder Feeding. Make sure your EC value rises to 0.3-0.4 EC.

2. Add Powder Feeding and mix well for 2-3 minutes, and then measure the EC value. If necessary, repeat until you reach the desired value.

3. When you reached the desired EC value, wait for 15-30 min.

4. Then measure the PH and if necessary, adjust it using PH up or PH down – mix good for 2-3 minutes and wait again 15-30 minutes before measuring.

5. When you reached the desired values, feed your plants.

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


Data sheet

12 cm
16 cm
14 cm
0.55 kg
9 Items

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