Declared water-soluble
The label declares phosphate and potassium oxide as water-soluble.
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- For wisteria and laburnum
- 5 ml per 2.5 l of water
- Every 2–3 weeks during growth
Using wisteria & laburnum fertiliser
Follow the product-specific dilution and the growing season.
- Declared NPK
- 2.5 + 7.0 + 4.2With declared trace nutrients.
- Dilution
- 5 ml per 2.5 l of waterEvery 2–3 weeks during growth.
- Application
- Roots & foliageDilute before use.
- Regular application period
- April–SeptemberFollow the plant’s active growth.
Product information
Application & dilutionFor horticultural use. Recommendations from official advisory services take precedence.
Application
Measure. Mix. Apply.
Dilution calculator · Wisteria & Laburnum Fertiliser
Enter the water volume actually needed: 5 ml per 2.5 l of water.
WaterConcentrate
2.5 l
Concentrate required
5 ml
Label dilution; measure partial doses using a suitable measuring device.
Enter a water volume from 0.1 to 1,000 litres.
No calculation from plant dimensions.
Calculation basis
5 ml per 2.5 l of water
Clean container
Use a suitable clean container.
Determine water volume
Choose the water volume actually needed.
Add water first
Preferably use low-lime water or rainwater at 15–25 °C.
Shake and measure
Shake the bottle; 5 ml per 2.5 l of water.
Add concentrate to water
Add the measured concentrate; never apply undiluted.
Mix and apply
Mix thoroughly. Pre-moisten roots before watering; do not spray open flowers.
When to apply? Every 2–3 weeks during active growth. Regular period: April–September.
Watering the root zone
Pre-moisten the root zone and apply the fully diluted solution.
Spray application according to the label
The label also allows spraying; avoid open flowers.
PropertiesLiquid concentrate with declared trace nutrients.
Net mass: 283 g for 250 ml.
| Pack size | Price | Yield at label dilution |
|---|---|---|
| 250 ml | 9.95 € Unit price ( 39.80 €/ l) | 125.0 l |
| 500 ml – twin pack (2 × 250 ml) | 18.95 € Unit price ( 37.90 €/ l) | 250.0 l |
At the label dilution, 250 ml makes a calculated 125 l of fertiliser solution.
Does this fertiliser suit your plant?
Identify your plant
For wisteria and laburnum according to the product label.
Follow active growth
Use during active growth; account for fertiliser already applied.
Check root space
Account for nutrients already supplied by fresh growing medium.
Understanding the formulation
Connect declaration and application
NPK 2.5 + 7.0 + 4.2. The product-specific declaration appears in the composition section.
Declared chelates
Copper, iron, manganese and zinc are declared as EDTA chelates.
Suitable water
Preferably use low-lime water or rainwater at 15–25 °C.
Follow the label dilution
The label dilution applies to watering and spraying.
Composition
Read nutrient percentages, net mass and pack size from this product’s own label.
Product pH 6.5 describes the concentrate, not a guaranteed soil pH.
Use clean equipment and a suitable measuring device.
Products
Combined use with other products is governed by each product’s information.
For combined use with other products, follow each product’s own information.
CompositionNutrient percentages from the product label.
Declared nutrient percentages. Product pH: 6.5.
The product pH describes the concentrate, not a guaranteed pH for the soil or diluted feed solution.
- 2.50% total nitrogen (N)
- 1.25% ammoniacal nitrogen
- 1.00% urea nitrogen
- 7.00% water-soluble phosphate (P₂O₅)
- 4.25% water-soluble potassium oxide (K₂O)
- 0.005% boron (B)
- 0.002% copper (Cu) · EDTA chelate
- 0.010% iron (Fe) · EDTA chelate
- 0.006% manganese (Mn) · EDTA chelate
- 0.0005% molybdenum (Mo)
- 0.002% zinc (Zn) · EDTA chelate
Plant · detail · application
Wisteria and laburnum in focus
Get to know two different woody plants and prepare their feed with care.
Wisteria on a pergola
Wisteria is a twining climber. A strong support and suitable pruning are part of its care.
Laburnum as a tree
Laburnum carries yellow flower racemes as a shrub or tree. Its training and pruning differ from those of wisteria.
Mix with water
Add the concentrate dosed according to the label to the water and mix thoroughly. Use only the fully diluted solution.
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Tree and shrub compost for the root space of both woody plants; account for position, drainage and initial fertiliser.
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Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
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, stems and flowers
RootsRoots connect the plant to the growing medium.
For watering applications, pre-moisten the root zone and use the fully diluted solution.
StemStems connect roots and above-ground plant parts.
Wisteria grows on a strong support. Its training and pruning follow its growth habit.
LeavesThe label also permits application to the foliage.
Use the full dilution when spraying too and account for feed already applied.
FlowersAvoid open flowers when spraying, as instructed on the label.
Direct the spray application at the foliage and avoid open flowers.
Application routes
Select a step
Step 01 / 04
Dilute
5 ml per 2.5 l of water.
For application5 ml per 2.5 l of water.
Learn more
5 ml per 2.5 l of water.
Step 02 / 04
Pre-moisten
Do not feed dry growing medium.
For applicationDo not feed dry growing medium.
Learn more
Do not feed dry growing medium.
Step 03 / 04
Apply to the root zone
Use the fully diluted solution.
For applicationUse the fully diluted solution.
Learn more
Use the fully diluted solution.
Step 04 / 04
Continue observing
Follow the growing season and feeding interval.
For applicationFollow the growing season and feeding interval.
Learn more
Follow the growing season and feeding interval.
Step 01 / 04
Dilute
5 ml per 2.5 l of water.
For application5 ml per 2.5 l of water.
Learn more
5 ml per 2.5 l of water.
Step 02 / 04
Check conditions
Do not apply in direct sunlight, below 5 °C or above 30 °C.
For applicationDo not apply in direct sunlight, below 5 °C or above 30 °C.
Learn more
Do not apply in direct sunlight, below 5 °C or above 30 °C.
Step 03 / 04
Spray selectively
Avoid open flowers.
For applicationAvoid open flowers.
Learn more
Avoid open flowers.
Step 04 / 04
Account for nutrient supply
Do not treat root and spray applications as independent feeds.
For applicationDo not treat root and spray applications as independent feeds.
Learn more
Do not treat root and spray applications as independent feeds.
Account for growth
Distinguish growth and rest
Young and newly planted plants
After planting or repotting, first check the nutrients already supplied. Plant height alone does not determine a suitable amount of concentrate.
Active growth
Base applications on actual growth and previous feeding. Watering and spray applications both count towards the total feed.
Resting period
During a rest period, a calendar date alone is not a reason for another feed.
Keep a note of the last application to avoid unintentionally overlapping root and foliar feeds.
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.
Site and root zone
Containers · root ball and drainage
Moisten the root ball before feeding. Let excess water drain away and account for fertiliser already present in the growing medium.
Garden · position and pruning
If flowers are sparse, also check light, plant age and pruning. Wisteria and laburnum need different training; extra concentrate cannot replace suitable care.
Rest period · follow growth
Application follows the growing season. Do not automatically carry the growing-season feeding interval over to a resting plant.
Repotting · existing nutrients
Fresh growing medium may already contain fertiliser. Check its declaration and application instructions before adding this concentrate.
Questions about use on wisteria and laburnum?
Leaves but few flowers
Assess age, light, pruning and previous nitrogen feeding. More fertiliser cannot replace flowering maturity.
Inspect stems and foliage
Identify aphids or scale-like coverings on shoots before choosing treatment.
Assess wilting in context
Check the roots, soil moisture and stem base. Dry and waterlogged conditions can cause similar foliage symptoms.
Application advice
For a focused enquiry, describe the actual application.
- Identify the product label and pack size.
- State water volume, concentrate volume and feeding interval.
- Describe the species, season and plant condition.
Describe changes together with the position, recent care and last feed. Discoloration alone is not enough to assess the cause.
PLANTS A–Z
Wisteria – Plant A–Z
Position, support and pruning: learn about caring for wisteria as a twining climber.
View the plant profile
PRACTICAL ADVICE
Recognise nutrient needs
Consider the nutrients already available alongside the plant’s needs. The guide helps put the next feed into context.
Read the guide
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
Is this fertiliser intended for both wisteria and laburnum?
The product label names wisteria and laburnum. It is an NPK concentrate to dilute, not a ready-to-use watering solution.
How do I mix a small 5-litre watering can?
The label specifies 5 ml per 2.5 l of water. For 5 l of water, you therefore need 10 ml of concentrate.
How often does the label recommend feeding during growth?
The label specifies every 2–3 weeks during active growth, normally April to September. Account for fertiliser already supplied.
How much solution does one 250 ml bottle make?
At the label dilution, 250 ml makes a calculated 125 l of fertiliser solution. This is not a fixed number of plants or applications.
Can I spray the flower clusters too?
The label allows watering or spraying but explicitly excludes open flowers. Pre-moisten the root zone before watering with the solution.
Does more concentrate mean more flowers?
A higher concentration is not an established way to obtain more flowers; the leaflet warns of damage from overfeeding. Follow this product’s dilution instructions.
Safety and storage
Safety instructions
SDS – Safety data sheet available on request.
For horticultural use.
Recommendations from official advisory services take precedence.
- 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.
Use protective clothing, rubber gloves and safety glasses as instructed in the original leaflet.
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 the product-specific label. The calculator uses that label dilution.
Storage
Storage
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.
Follow disposal instructions on the original label.
More concentrate does not replace suitable growing conditions.
Manufacturer / company placing the product on the market
Guides for this product
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