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 and trace nutrients for oleander (Nerium oleander)
- Product-specific dilution calculator
- Root and foliar use according to the label
Narrow leaves, summer flowers
For oleander within this product's own labelled scope. Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
- Declared NPK
- 6.4 + 4.5 + 6.7With declared trace nutrients.
- Dilution
- 10 ml per 2.5 l of waterEvery 1–2 weeks during the growing season.
- Application
- Roots & foliageDilute with water before use.
- Regular application period
- April–SeptemberApply only during active growth.
Product information
Application & dilutionMix and apply according to this product's own directions.
Application in one place
Measure. Mix. Apply.
Dilution calculator · oleander
Dilution: 10 ml per 2.5 l of water.
Your water amountRough watering-volume guide
2.5 l
Matching concentrate amount
10 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) × 10 ÷ 2.5.
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? 10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September. Do not use undiluted. Shake well before use. 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.
Watering · through the roots
Oleander Fertiliser: The product’s own directions distinguish watering and spraying. Use the dilution specified for this product.
Spraying · onto the leaves
Foliar feeding is covered by this product’s own information. Follow the limits in its application section.
Characteristics & pack sizesThe concentrate and pack sizes at a glance.
Net mass: 290 g for 250 ml; 1161 g for 1 litre.
The dilution is the same for both pack sizes.
| 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) |
| 1 litre | 29.95 € Unit price ( 29.95 €/ l) |
Fits your care routine
For Nerium oleander
For oleander within this product's own labelled scope. Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
During active growth
10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September. Do not use undiluted. Shake well before use. 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.
Account for existing nutrients
Check container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
Understand this formulation
Add nutrients at the right dilution
NPK 6.4 + 4.5 + 6.7 Declared nutrient percentages. Product pH: 6.9. 6.4% total nitrogen (N) 6% urea nitrogen 4.5% water-soluble phosphate (P₂O₅) 6.7% water-soluble potassium oxide (K₂O) 0.0075% boron (B) 0.003% copper (Cu) · water-soluble · EDTA chelate 0.015% iron (Fe) · EDTA chelate 0.009% manganese (Mn) · EDTA chelate 0.0008% molybdenum (Mo) 0.003% zinc (Zn) · water-soluble · EDTA chelate
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.
Oleander Fertiliser: The product’s own directions distinguish watering and spraying. Use the dilution specified for this product.
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 nutrient percentages. Product pH: 6.9.
- 6.4% total nitrogen (N)
- 6% urea nitrogen
- 4.5% water-soluble phosphate (P₂O₅)
- 6.7% water-soluble potassium oxide (K₂O)
- 0.0075% boron (B)
- 0.003% copper (Cu) · water-soluble · EDTA chelate
- 0.015% iron (Fe) · EDTA chelate
- 0.009% manganese (Mn) · EDTA chelate
- 0.0008% molybdenum (Mo)
- 0.003% zinc (Zn) · water-soluble · EDTA chelate
GREEN24 · Plant knowledge
Narrow leaves, summer flowers
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Foliage and habit
Narrow, leathery leaves, often arranged in whorls of three; older leaves are replaced gradually.
Flowers and development
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Growth and care
Check container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
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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
RootsFine roots contact soil water. Their cell membranes regulate uptake of dissolved nutrients.
Check container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
LeavesNarrow, leathery leaves, often arranged in whorls of three; older leaves are replaced gradually.
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Shoots and habitA multi-stemmed, upright shrub with long, outward-arching branches; it can also be trained as a standard.
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
FlowersJune–September; colour and fragrance depend on the cultivar.
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Understand nutrient uptake
Choose a route and station.
Station 01 / 04
The diluted solution
Oleander Fertiliser: The product’s own directions distinguish watering and spraying. Use the dilution specified for this product.
For application10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September. Do not use undiluted. Shake well before use. 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.
Learn more
Oleander Fertiliser: The product’s own directions distinguish watering and spraying. Use the dilution specified for this product.
Station 02 / 04
Contact with fine roots
Fine roots contact soil water. Their cell membranes regulate uptake of dissolved nutrients.
For applicationLeaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Learn more
Fine roots contact soil water. Their cell membranes regulate uptake of dissolved 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 applicationLeaves are often in whorls of three; flower colour and fullness depend on the cultivar.
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 applicationCheck container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
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
Foliar feeding is covered by this product’s own information. Follow the limits in its application section.
For application10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September. Do not use undiluted. Shake well before use. 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.
Learn more
Foliar feeding is covered by this product’s own information. Follow the limits in its application section.
Station 02 / 04
The relevant leaf surface
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar. Leaf surfaces affect wetting; do not assume one uptake rate for every species.
For applicationLeaves are often in whorls of three; flower colour and fullness depend on the cultivar.
Learn more
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar. 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 applicationLeaves are often in whorls of three; flower colour and fullness depend on the cultivar.
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 applicationCheck container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
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
In spring, check whether the root ball needs more space. Repot into a suitable container when required, retaining the planting depth and accounting for nutrients in the fresh compost.
Active growth
10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September. Do not use undiluted. Shake well before use. 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.
Rest period
For container plants in Germany, plan bright, cool and reliably frost-free winter quarters. Inspect leaf undersides and shoots before moving indoors; reintroduce plants to sun gradually in spring.
Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
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
Check container moisture before watering. Adjust to weather, foliage and position; account for lower use in winter quarters and keep drainage open.
In the garden
Provide sun, warmth and shelter. Give container roots enough space and free drainage; overwinter in bright, cool, reliably frost-free conditions in Germany.
Winter and rest
For container plants in Germany, plan bright, cool and reliably frost-free winter quarters. Inspect leaf undersides and shoots before moving indoors; reintroduce plants to sun gradually in spring.
Planting and repotting
In spring, check whether the root ball needs more space. Repot into a suitable container when required, retaining the planting depth and accounting for nutrients in the fresh compost.
Observe and identify the cause
Sap-feeding pests
Inspect young shoots and leaf undersides for aphids, scale or mealybugs. Check affected plants separately before overwintering.
Distorted, swollen shoots
Knobbly swellings and dark lesions can indicate oleander knot. Seek a diagnosis and keep pruning tools clean.
Few flowers
Check warmth, light and recent pruning first. Extra fertiliser cannot replace sunshine or removed flower buds.
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
oleander 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?
For oleander within this product's own labelled scope. Leaves are often in whorls of three; flower colour and fullness depend on the cultivar.
How is it diluted and applied?
10 ml per 2.5 l of water 10 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September.
How much prepared solution does each pack make?
250 ml → 62.5 l; 500 ml – twin pack (2 × 250 ml) → 125 l; 1 litre → 250 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.
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.
Official advisory recommendations take precedence.
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 in a dry, dark place above 8 °C and at no more 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 in a dry, dark place above 8 °C and at no more 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
Guides for this product
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