NPK from the declaration
4.00% total nitrogen, 4.00% water-soluble phosphate (P₂O₅) and 3.00% water-soluble potassium oxide (K₂O). See Nutrient composition for the complete nitrogen forms and other declared contents.
Dilution, application interval and declared composition of FlowerPower Universal Fertiliser. Choose the water volume to match the particular plant.
Standard dilution: 5 ml per 2.5 litres of water. Every 2–3 weeks during growth; regular period April–September.
Check species, actual growth, pre-fertilisation and previous feeds. Choose the water volume according to current need, not bottle size.
Apply only after dilution. For young plants, first test the qualified half dose on one plant and stop if damage occurs. Follow the full safety and storage guidance.
Application in one place
Enter the water volume you actually need. Standard dilution: 5 ml per 2.5 litres of water. For young plants, half the base dose applies only under the testing and tolerance conditions below. The calculator does not determine the plant’s water needs.
Measure concentrate accurately and never apply it undiluted. Use a suitable measuring aid for small quantities. Read the complete young-plant guidance before applying.
Enter a water amount from 0.1 to 1,000 litres.
Prepare a clean, chemically suitable watering can or sprayer. Prefer low-lime water or rainwater at 15–25 °C.
Enter the required water volume. Standard: 5 ml per 2.5 litres of water. For young plants and sensitive areas, start at half strength: 2.5 ml per 2.5 litres. First test on one plant, observe over days or weeks and stop if damage occurs.
Start by adding part of the chosen water volume to the container.
Shake the bottle well and measure the calculated concentrate accurately. Wear rubber gloves and safety goggles when mixing and applying.
Add the measured concentrate to the water already in the container. Do not mix undiluted concentrates together.
Top up to the chosen water volume and mix thoroughly. Use the diluted solution promptly for watering or spraying.
When to feed? Apply every 2–3 weeks during active growth. Regular application period: April–September; account for species, actual growth and nutrients already available.
Moisten the root zone before feeding and distribute the diluted solution according to need. Do not fertilise dry soil or dry growing medium. Account for nutrients already present and drainage.
Wet upper and lower leaf surfaces with the appropriate dilution, avoiding open flowers. Do not apply in direct sunlight, below 5 °C or above 30 °C. Wear suitable protective gloves and safety goggles. Foliar feeding is not an automatic additional full feed alongside watering.
Declared percentages by mass.
Product pH: 5.8.
Additional original g/l figures: B 0.0620 g/l; Cu 0.0245 g/l; Fe 0.1240 g/l; Mn 0.0740 g/l; Mo 0.0060 g/l; Zn 0.0245 g/l
NPK fertiliser solution manufactured using fertilisers. Starting materials: NPK fertiliser. Responsible supplier: GREEN24 GmbH, Am Neggenborn 125, 44892 Bochum, Germany.
Net mass 280 g. Contents 250 ml.
| Pack size | Price | Net mass | Yield at label dilution |
|---|---|---|---|
| 250 ml | 9.85 € Unit price ( 39.40 €/ l) | 280 g | 125.0 l |
Calculated yield at the stated standard dilution; actual use depends on water needs and application.
Net mass excludes the packaging. The twin-pack total is calculated from two individual bottles.
Nutrients already in pre-fertilised compost and previous feeds contribute to the overall supply. Do not increase the dose to compensate for inadequate light or unsuitable watering.
No product-specific approval for mixing with other care or plant-protection products is provided here. Without explicit confirmation, apply separately and follow both products’ instructions.
Ask about product-specific compatibility →Understand the declared formulation
NPK 4.00 + 4.00 + 3.00 according to the original rear label. These are composition figures, not additional performance claims.
4.00% total nitrogen, 4.00% water-soluble phosphate (P₂O₅) and 3.00% water-soluble potassium oxide (K₂O). See Nutrient composition for the complete nitrogen forms and other declared contents.
Copper (0.0020%), iron (0.0100%), manganese (0.0060%) and zinc (0.0020%) are declared as EDTA chelates. Also declared: boron 0.0050% and molybdenum 0.0005%.
Prefer low-lime water or rainwater at 15–25 °C. The declared product pH of 5.8 describes the concentrate; it does not guarantee the pH of the diluted solution or growing medium.
The declaration belongs to the 250 ml bottle. Dilution, plant needs and the young-plant guidance apply independently of the nutrient figures shown.
The reverse label declares 4.00% total nitrogen, together with 1.15% nitrate nitrogen, 1.80% ammoniacal nitrogen and 1.00% urea nitrogen.
Wear rubber gloves and safety goggles when mixing and applying, and use clean, chemically suitable equipment and containers. Follow the full safety and storage guidance.
PRODUCT KNOWLEDGE

FlowerPower is a universal liquid NPK concentrate for root and foliar feeding. Dilute 5 ml in 2.5 litres of water and apply every 2–3 weeks during growth.
FlowerPower is a universal liquid NPK concentrate for root and foliar feeding. Dilute 5 ml in 2.5 litres of water and apply every 2–3 weeks during growth.

5 ml per 2.5 litres of water
The label’s base dilution is 5 ml per 2.5 litres of water. Water quantity depends on species, size and substrate. Young plants and sensitive plant areas: start with half the base dose (2.5 ml per 2.5 litres of water). Apply to one test plant first and observe it over days or weeks depending on the species. Stop applying if damage occurs. Suitability depends on the species and application; this does not establish suitability for all young plants. The dose table below shows both dilutions.
Put preferably low-lime water or rainwater at 15–25 °C into a clean vessel.
Shake the closed bottle well before use.
Use the label’s base dilution of 5 ml per 2.5 litres of water and measure the concentrate for your chosen water volume. For young plants and sensitive areas, follow the half-dose guidance above.
Measure the required concentrate accurately and mix evenly into the water.
Water the pre-moistened root zone or lightly wet upper and lower leaf surfaces. Avoid open flowers.
Every 2–3 weeks during growth; regular period April–September.

Feed only where nutrients are needed. Water quantity depends on species, size and substrate. Water normally as needed between feeding applications.
Liquid NPK nutrient solution with declared trace elements. Full composition is listed in Product information.
Feed only where nutrients are needed. Water quantity depends on species, size and substrate. Water normally as needed between feeding applications.
April to September is the usual European application period. What matters is whether the particular plant is actively growing. Do not feed a dormant plant simply because it falls within that calendar window.
Dilute 5 ml in 2.5 litres of water. Apply every 2–3 weeks during active growth; the usual European period is April to September. Water the pre-moistened root zone or lightly mist the foliage. Avoid open flowers.
Yes. The base dilution is 5 ml per 2.5 L water. Do not use undiluted.
Feed only where nutrients are needed. Water quantity depends on species, size and substrate. Water normally as needed between feeding applications.
Store dry in the closed original container, out of reach of children and animals.
At 5 ml per 2.5 litres of water, 250 ml treats 125 litres of water.
SDS – Safety data sheet available on request.
Store dry and dark, above 8 °C and at no more than 38 °C. Keep out of reach of children and animals.
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