Water-soluble declaration
The composition lists nutrients declared as water-soluble on this product's own label. Mix the measured concentrate thoroughly in water.
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- NPK concentrate with trace nutrients for dahlias
- Product-specific dilution calculator
- Root and foliar use according to the label
Flower heads above strong shoots
Dahlias bring colour to borders and containers from summer until frost. This liquid feed supplements nutrition during growth. Match feeding to existing nutrients and moisture around the roots; do not fertilise dormant tubers.
- Declared NPK
- 5.6 + 8.0 + 10.8Product-specific declaration with trace nutrients.
- Standard dilution
- 5 ml per 1.5 litres of waterEvery 1–2 weeks during growth.
- Application season
- May/June–SeptemberFeed only during active growth and according to need.
- Application
- Roots & foliageApply diluted only.
Product information
Application & dilutionMix and apply according to this product's own directions.
Application in one place
Measure. Mix. Apply.
Dilution calculator · dahlias
5 ml per 1.5 litres of water
Your water amountRough watering-volume guide
1.5 l
Matching concentrate amount
5 ml
Measure the calculated concentrate with a suitable measuring aid. Do not estimate small amounts by eye.
Enter a water amount from 0.1 to 1,000 litres.
Use the water volume actually needed. Plant height alone does not provide a reliable watering volume.
How the guide is calculated
Concentrate (ml) = water (l) × 5 ÷ 1.5.
Prepare a clean container
Use a suitable clean watering can or sprayer and follow this product's water directions.
Choose the water volume
Choose the amount actually needed. Check root-ball moisture and drainage before watering.
Add water first
Start with part of the selected water volume.
Shake and measure
Shake the bottle well. Measure the concentrate calculated for the selected water volume accurately.
Add the concentrate
Add the measured amount to the water; never apply concentrate directly to the plant.
Top up and mix
Top up to the chosen water volume and mix thoroughly. Water or spray according to this product's own directions.
When to feed? 5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients. Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Watering · through the roots
Apply the prepared solution to a moist root zone. Match the water volume to the root ball and conditions; allow excess water to drain.
Spraying · onto the leaves
Also suitable for foliar feeding. Use the same dilution, avoid open flowers and observe temperature and sunlight restrictions. Watering and spraying are alternative routes within one feeding plan.
Characteristics & pack sizesThe concentrate and pack sizes at a glance.
Net mass per 250 ml: 312 g.
A twin pack contains two bottles of 250 ml each.
Product pH: 6.7.
| Pack size | Price |
|---|---|
| 250 ml | 9.85 € Unit price ( 39.40 €/ l) |
| 500 ml – twin pack (2 × 250 ml) | 18.95 € Unit price ( 37.90 €/ l) |
Fits your care routine
Species and site
Dahlias bring colour to borders and containers from summer until frost. This liquid feed supplements nutrition during growth. Match feeding to existing nutrients and moisture around the roots; do not fertilise dormant tubers.
Dilute accurately
5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients. Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Account for growth
Humus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
Understand this formulation
Add nutrients at the right dilution
NPK 5.6 + 8.0 + 10.8 Declared percentages. Product pH: 6.7. 5.6 % total nitrogen (N); the label specifies 1.2 % nitrate nitrogen and 3.6 % urea nitrogen. 8.0 % water-soluble phosphate (P₂O₅). 10.8 % water-soluble potassium oxide (K₂O). Water-soluble trace nutrients: boron 0.01 %; copper 0.004 %; iron 0.02 %; manganese 0.012 %; molybdenum 0.001 %; zinc 0.004 %. Copper, iron, manganese and zinc are EDTA-chelated.
Declared trace nutrients
See this product's declaration for amounts and any chelate bindings. This does not justify an additional unmeasured trace-nutrient feed.
Account for water and position
Follow this product's water and application directions. Concentrate pH does not establish a guaranteed pH for soil or diluted solution.
Measure accurately and store correctly
Retain the original container and labelling and follow this product's full directions.
Nutrients in context
Nutrition, light, water and root condition work together. Extra fertiliser cannot correct insufficient light or damaged roots.
Apply the prepared solution to a moist root zone. Match the water volume to the root ball and conditions; allow excess water to drain.
Use clean suitable containers and an appropriate measuring aid.
Products
The recommendations cover products for different care tasks. Combining them in the same solution requires the instructions for both products to allow that combination. Otherwise, apply the products separately.
Do not mix undiluted concentrates together. Follow the confirmed mixing conditions and application routes of each product.
Nutrient compositionThe complete product-specific declaration.
Declared percentages. Product pH: 6.7.
- 5.6 % total nitrogen (N); the label specifies 1.2 % nitrate nitrogen and 3.6 % urea nitrogen.
- 8.0 % water-soluble phosphate (P₂O₅).
- 10.8 % water-soluble potassium oxide (K₂O).
- Water-soluble trace nutrients: boron 0.01 %; copper 0.004 %; iron 0.02 %; manganese 0.012 %; molybdenum 0.001 %; zinc 0.004 %. Copper, iron, manganese and zinc are EDTA-chelated.
GREEN24 · Plant knowledge
Flower heads above strong shoots
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Foliage and habit
Upright herbaceous stems with mostly opposite, toothed leaves. Underground swollen storage roots, not true bulbs.
Flowers and development
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Storage roots
Swollen storage roots support new growth; growing points sit at the crown. Fine roots take up water and nutrients.
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Growth & nutrient uptake
Leaves use light; roots take up water and mineral nutrients. The diagrams show how plant organs work together and how nutrients are absorbed.
Roots, foliage and growth
RootsSwollen storage roots support new growth; growing points sit at the crown. Fine roots take up water and nutrients.
Humus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
LeavesDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Shoots and habitUpright herbaceous stems with mostly opposite, toothed leaves. Underground swollen storage roots, not true bulbs.
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
FlowersDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Understand nutrient uptake
Choose a route and station.
Station 01 / 04
The diluted solution
Apply the prepared solution to a moist root zone. Match the water volume to the root ball and conditions; allow excess water to drain.
For application5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients. Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Learn more
Apply the prepared solution to a moist root zone. Match the water volume to the root ball and conditions; allow excess water to drain.
Station 02 / 04
Contact with fine roots
Swollen storage roots support new growth; growing points sit at the crown. Fine roots take up water and nutrients.
For applicationDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Learn more
Swollen storage roots support new growth; growing points sit at the crown. Fine roots take up water and nutrients.
Station 03 / 04
Regulated uptake
Membranes and transport proteins regulate nutrient entry into living root cells. Extra fertiliser does not repair damaged or oxygen-starved roots.
For applicationDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Learn more
Membranes and transport proteins regulate nutrient entry into living root cells. Extra fertiliser does not repair damaged or oxygen-starved roots.
Station 04 / 04
Transport through the plant
Water and absorbed nutrients move towards growing organs. The drawing explains a functional pathway, not measured performance of this fertiliser.
For applicationHumus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
Learn more
Water and absorbed nutrients move towards growing organs. The drawing explains a functional pathway, not measured performance of this fertiliser.
Station 01 / 04
Wet foliage as directed
Also suitable for foliar feeding. Use the same dilution, avoid open flowers and observe temperature and sunlight restrictions. Watering and spraying are alternative routes within one feeding plan.
For application5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients. Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Learn more
Also suitable for foliar feeding. Use the same dilution, avoid open flowers and observe temperature and sunlight restrictions. Watering and spraying are alternative routes within one feeding plan.
Station 02 / 04
The relevant leaf surface
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants. Leaf surfaces affect wetting; do not assume one uptake rate for every species.
For applicationDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Learn more
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants. Leaf surfaces affect wetting; do not assume one uptake rate for every species.
Station 03 / 04
Entry into leaf tissue
The outer leaf barrier and other pathways influence entry of dissolved substances. The cell view is schematic; droplets do not automatically pass freely through every stomatal opening.
For applicationDahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Learn more
The outer leaf barrier and other pathways influence entry of dissolved substances. The cell view is schematic; droplets do not automatically pass freely through every stomatal opening.
Station 04 / 04
Part of the total nutrient supply
Absorbed substances are used or transported within the plant. Account for foliar and root applications together rather than adding two full feeding programmes.
For applicationHumus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
Learn more
Absorbed substances are used or transported within the plant. Account for foliar and root applications together rather than adding two full feeding programmes.
Observe development
Distinguish growth from rest
Young plants and establishment
Plant after local frost risk ends; support tall cultivars immediately.
Active growth
5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients. Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Rest period
Store tubers frost-free with ventilation; avoid wet material and rot.
Dahlias have swollen storage roots and growing points at the crown. They are not bulb plants.
Application & calculator →Growing conditions & care problems
Adapt care to the growing conditions and stage of growth. If you notice changes, check light, water and roots first — then take targeted action.
Growing conditions
In containers
Humus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
In the garden
Humus-rich, well-drained soil; drainage holes and suitable compost in pots. Fertiliser does not replace an even water supply.
Winter and rest
Store tubers frost-free with ventilation; avoid wet material and rot.
Planting and repotting
Plant after local frost risk ends; support tall cultivars immediately.
Observe and identify the cause
Inspect young shoots
Look early for slug damage and aphids. Identify the cause before changing feeding.
Soft tubers
Avoid waterlogging and rot. Separate diseased stored tubers and inspect the remainder.
Skin and pets
Sap and tuber handling may irritate skin; wear gloves. Do not offer ornamental plants as food or allow pets to chew them.
Discuss the care problem
These details help assess the problem:
- Record plant species, position and recent changes.
- Describe root-ball moisture, drainage and previous feeds.
- Provide an overview and clear photos of affected organs.
This guidance supports investigation; it does not replace a reliable diagnosis or authorised plant-protection directions.
PLANTS A–Z
dahlias in the plant guide
Explore position, root space and care for the actual plant.
View the plant guide
PRACTICAL ADVICE
What limits plant growth
Consider light, water, roots and nutrients together.
Read the guide
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
Which plants is this concentrate intended for?
Dahlias bring colour to borders and containers from summer until frost. This liquid feed supplements nutrition during growth. Match feeding to existing nutrients and moisture around the roots; do not fertilise dormant tubers.
How is it diluted and applied?
5 ml per 1.5 litres of water One 5 ml capful per 1.5 litres of water. Every 1–2 weeks during growth; usual application season in Europe is May/June to September. Account for growth, need and existing nutrients.
How much prepared solution does each pack make?
250 ml → 75 l; 500 ml – twin pack (2 × 250 ml) → 150 l. Calculated yield at this product's standard dilution; plant needs determine the amount applied.
What application limits apply?
Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Preferably use low-lime water or rainwater at 15–25 °C. Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C. Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers. Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Safety and storage
Safety instructions
SDS – Safety data sheet available on request.
- Do not use undiluted. Shake well before use.
- Keep out of reach of children and animals.
- Preferably use low-lime water or rainwater at 15–25 °C.
- Do not apply in direct sunlight or at temperatures below 5 °C or above 30 °C.
- Apply to a pre-moistened root zone or spray the foliage. Do not spray open flowers.
- Wear protective clothing, rubber gloves and safety goggles when mixing and applying. Use clean, chemically suitable tools and containers.
Follow the label and official advice.
Wash your face and hands thoroughly. Use diluted fertiliser promptly and keep it out of water bodies and wastewater.
Product GPSR safety information
The original leaflet supplements this product’s own instructions. Use dilution stages only within their stated scope; standard dilution remains the basis of yield.
Storage
Storage and product quality
Dry · dark · above 8 °C to a maximum of 38 °C Store dry and dark, above 8 °C and no higher than 38 °C. Keep out of reach of children and animals.
Keep tightly closed in the original container, separate from food and animal feed.
Dry · dark · above 8 °C to a maximum of 38 °C Store dry and dark, above 8 °C and no higher than 38 °C. Keep out of reach of children and animals.
Keep fertiliser residues and wash water out of waterways and sewage. Follow packaging disposal directions.
Prepare only the amount needed and never apply undiluted.
Manufacturer / company placing the product on the market
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