Water-soluble & available
All nutrients are water-soluble. In the fully diluted mixture, they are available for feeding through roots and leaves.
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- Nitrogen-rich NPK concentrate for bamboo
- For root and foliar feeding
- Product-specific dilution calculator
Feed bamboo. Understand its growth.
Bamboo belongs to the grass family. Woody culms, narrow leaves and underground rhizomes shape its structure. Find application guidance and practical information for clumping and running garden bamboos.
- Declared NPK
- 9.0 + 3.0 + 4.5With declared trace nutrients.
- Dilution
- 5 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 & dosageMix and apply to suit the growth stage.
Application in one place
Measure. Mix. Apply.
Bamboo dosing calculator
Dilution: 5 ml per 2.5 l of water.
Your water amountRough watering-volume guide
2.5 l
Matching concentrate amount
5 ml
1 capful = 5 ml. Use a suitable measuring aid for smaller partial amounts.
Enter a water amount from 0.1 to 1,000 litres.
A rough root-watering guide for one container plant or a bounded clump only. Measure height from soil level and overall leafy width; do not use one culm or the entire hedge length. Use the actual water volume for continuous plantings. Check moisture, growing medium, roots and weather; do not force a guide volume.
How the guide is calculated
General GREEN24 guide: height (m) × width (m) × 3–4 litres. Centimetres are converted to metres. Concentrate volume follows this fertiliser’s dilution and the chosen stage. The guide does not measure an individual plant’s water needs.
Prepare a clean container
Use a clean watering can or sprayer; preferably low-lime water or rainwater at 15–25 °C.
Calculate the amount
Enter the water volume and choose the appropriate dose stage. The size guide replaces neither assessment of plant development nor checking root-ball moisture.
Add some water first
Start by filling the container with part of the chosen water volume.
Shake & measure
Shake the bottle. 1 capful = 5 ml; use a measuring aid for smaller partial amounts.
Add the concentrate
Add the calculated amount of concentrate to the water.
Top up & mix well
Top up to the chosen water volume and mix well. Watering or spraying: see below.
When to feed? 5 ml per 2.5 l of water. Every 1–2 weeks during the growing season. Regular application period: April–September.
Watering · through the roots
Moisten the root zone first and distribute the mixture evenly. Check free drainage in containers and water drainage in the garden. Do not feed dry or waterlogged root zones.
Spraying · onto the leaves
Lightly wet the leaves in the morning, evening or overcast conditions, avoiding open flowers. Root and foliar feeding count towards the same feeding schedule, not two parallel programmes.
Characteristics & pack sizesThe concentrate and pack sizes at a glance.
Net mass: 284 g for 250 ml; 1135 g for 1 litre.
The dilution is the same for both pack sizes.
| Pack size | Price | Yield at label dilution |
|---|---|---|
| 250 ml | 9.85 € Unit price ( 39.40 €/ l) | 125.0 l |
| 500 ml – twin pack (2 × 250 ml) | 18.95 € Unit price ( 37.90 €/ l) | 250.0 l |
| 1 litre | 29.95 € Unit price ( 29.95 €/ l) | 500.0 l |
Yield at the labelled standard dilution; account for pack size and existing nutrients.
Fits your bamboo care
For bamboo and grasses
For botanical bamboo and grasses, including Fargesia and Phyllostachys. Lucky bamboo (Dracaena) and sacred bamboo (Nandina) belong to other plant groups.
During active growth
During active growth, regularly April–September. Account for existing nutrients, rooting space and root-ball moisture.
Account for existing nutrients
Allow for existing feed after repotting. Investigate root damage, heavy leaf drop or an unclear condition before adding more fertiliser.
Beyond NPK · understand the formulation
Well mixed – available to leaves and roots
Water-soluble nutrients and coordinated formulation properties make feeding bamboo straightforward. Explore what the prepared mixture offers for leaves and roots.
Protected trace nutrients
Copper, iron, manganese and zinc are declared as EDTA chelates. This binding helps keep these trace nutrients available in solution.
pH buffering for the mixture
The buffer system helps regulate the pH of the finished watering or spraying solution. The source water also influences the resulting value.
Even coverage on the leaf
Good wetting and adherence help distribute the spray solution across the leaves. Dissolved nutrients are then available at the leaf surface for uptake.
Reduce hard-water effects
The formulation helps reduce adverse hard-water effects and deposits on the leaves. Low-lime water or rainwater provides a good starting point.
Feed with plant tolerance in mind
High plant tolerance when correctly applied accompanies foliage and new culm development. Balanced nutrition supports your bamboo’s natural leaf appearance.
Understand foliage quality and seasonal growth
Suitable nutrition supports leaf development and green foliage. Leaf finish means an even, well-kept appearance, not a shine coating. Species, light, water and available space also influence development; no specific culm height or winter hardiness is promised.
Chelation binds metal ions and can reduce adverse effects of hardness; it does not remove calcium and magnesium from the water. The product pH of 6.8 describes the concentrate. The final mixture’s pH also depends on the source water; no fixed target is promised.
Use clean, suitable watering or spraying equipment. Measure the water and calculated concentrate quantity carefully.
Products
Use other care products according to their own instructions. A product recommendation does not confirm tank mixing.
Do not mix undiluted concentrates. Follow each product’s own application method and dose.
Nutrient composition · NPKDeclared nutrients and their forms.
Declared nutrient percentages. Product pH: 6.8.
- 9% total nitrogen (N)
- 9% urea nitrogen
- 3% water-soluble phosphate (P₂O₅)
- 4.5% 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
Moving leaves. Jointed culms. Emerging shoots.
Narrow leaves move between the culms. Underground rhizomes connect the planting and produce new shoots. Choose growth habit and available space together so your bamboo can develop appropriately.
Narrow foliage, gradual renewal
Many garden bamboos stay green throughout the year. Older leaves are gradually replaced, especially in spring. Heavy leaf loss or rolled foliage calls for a check of moisture, weather and roots.
Culms with visible nodes
New culms extend and then develop foliage. Species and position influence their growth. A removed culm section will not grow back; later new culms may rise above the chosen screen height.
Underground stems connect the planting
Rhizomes are underground stems, not roots. Fargesia forms compact clumps, while Phyllostachys produces long runners. Even a clump widens; running rhizomes need containment that can be inspected.
Matching products
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Ready to use for potting and planting bamboo and grasses. The compost already contains nutrients. Begin supplementary feeding after 4–6 weeks according to the label, allowing for season and plant condition.
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GREEN24
Kalk-Frei – Anti-Kalk concentrate for watering water
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For hard irrigation water, pretreat according to its instructions, settle for 5–6 hours and decant carefully. This is not approval for tank mixing.
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BERGER
BERGER 5610 narrow planting trowel
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For adding growing medium and small planting jobs. Avoid damaging roots.
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Garden & planting bag Pro, 140 L
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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.
How bamboo grows and feeds
Roots · absorb and anchorFine roots access moist soil and anchor the planting.
Fine roots need moisture and oxygen. The connected rhizomes are underground stems bearing buds for new culms. Clumping or running growth determines space planning; rhizome barriers must remain accessible for inspection.
Leaves · capture energyNarrow green leaves use light to make sugars.
Bamboo replaces its foliage gradually. Older yellow leaves may be part of that process; assess rolled or badly altered leaves against moisture, sun, wind and frost as well. Evergreen foliage does not imply a year-round need for feeding.
Culms · support and connectJointed culms support side branches and leaves.
New culms emerge from rhizome buds, extend and then develop foliage. Vascular tissue connects plant parts. Thin selected old culms when pruning; a shortened culm does not replace its removed section.
Nutrients · working togetherNitrogen, phosphorus and potassium for mineral nutrition.
Nitrogen supports chlorophyll and protein formation. Phosphorus contributes to energy transfer, while potassium supports water regulation and transport. The formulation supplements these minerals and declared micronutrients; it cannot replace suitable light and root conditions.
How nutrients enter bamboo
Select a point in the picture or choose a stage.
Stage 01 / 04
Nutrient solution reaches bamboo roots
The mixture reaches the soil around fine roots. Dissolved nutrients are available at the interface between roots and soil.
Good to knowAlways dilute the concentrate and keep to the stated dosage.
A closer look
Watering carries dissolved nutrients into the growing medium around the roots. Contact with the absorbing root surfaces is the first step.
Stage 02 / 04
Uptake at the root surface
Fine root hairs increase contact with the growing medium. Tiny transport proteins in the membranes surrounding root cells help dissolved nutrients enter the cells.
Good to knowRoots take up nutrients; they do not simply absorb all the fertiliser along with the water.
A closer look
Root hairs increase the contact area. Transport proteins in cell membranes enable mineral ions to enter; water movement and nutrient uptake are distinct processes.
Stage 03 / 04
Root cells regulate uptake
Cell membranes and their transport proteins regulate dissolved nutrient uptake in bamboo roots. Substances are not simply washed unfiltered into the plant with irrigation water.
Good to knowMore fertiliser does not automatically mean better nutrition.
A closer look
Controlled steps in root tissue lie between the root surface and onward transport. Transport across cell membranes helps bamboo take up nutrients; water movement and nutrient uptake are different processes. The diagram does not substitute rhizome uptake for root uptake.
Stage 04 / 04
On to culms and bamboo leaves
Inside the root are fine transport channels called xylem. Water and absorbed nutrients can travel through them towards shoots and leaves.
Good to knowHealthy roots and suitable growing conditions are important for nutrient supply.
A closer look
After entering the vascular tissue, nutrients can travel with the water stream in the xylem towards the shoot. Uptake and nutrient supply also depend on root health and growing conditions.
Stage 01 / 04
The diluted solution wets the bamboo leaf
The fully diluted mixture wets the leaf surface. Avoid open flowers and spray only under suitable application conditions.
Good to knowBamboo Fertiliser is also suitable for foliar application. Use only the fully diluted mixture and count the application towards the shared feeding plan.
A closer look
Foliar feeding places diluted nutrient solution on the leaf surface. Wetting depends on factors including the leaf surface and the solution.
Stage 02 / 04
Uptake across the bamboo leaf surface
The leaf surface protects the plant. Dissolved nutrients can pass through this layer; tiny openings in the leaf may also play a part. Uptake varies with the type of leaf and the conditions.
Good to knowDifferent leaves do not absorb a nutrient solution equally well.
A closer look
Dissolved nutrients can pass through the protective cuticle; pathways involving stomata may also contribute. Their relative importance varies with plant species and conditions.
Stage 03 / 04
Bamboo leaf cells take up nutrients
Behind the surface lies living leaf tissue. Its cells can take up nutrients that have crossed the surface and use them for their activities.
Good to knowA droplet on a leaf does not yet mean its nutrients have been absorbed.
A closer look
After crossing the surface, nutrients can be taken up by living leaf cells. The amount depends on factors including the nutrient, formulation and environmental conditions.
Stage 04 / 04
Use within the leaf and possible redistribution
The plant can use absorbed nutrients within the leaf. Some can also reach other plant parts. This depends on the nutrient and the plant's condition.
Good to knowFoliar feeding does not mean every nutrient immediately reaches the whole plant.
A closer look
Absorbed nutrients can be used within the leaf. Whether and how far they move to other plant parts depends on the nutrient and the plant's condition.
Development influences requirements
Distinguish establishment, new culms and rest
Establishment & young divisions
After planting or division, first secure moisture, drainage and space. Each division needs living rhizomes and roots. Account for existing fertiliser; start young and sensitive plants at half strength.
New culms & leaf development
New culms emerge from spring into summer depending on species and weather. Feed at the stated interval during active growth. A thin culm or open planting is not a reason to increase concentration indiscriminately.
Growth rest & winter care
Do not feed during growth rest. Evergreen bamboo may still need water on frost-free winter days. Check root-ball moisture and protect against drying wind; species and position determine winter protection.
Consider species, development, rooting space and existing nutrients together. Culm height alone determines neither dose stage nor individual water needs.
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.
How does bamboo grow in your space?
Container · root space and drainage
Use a stable container with enough rooting space and free drainage. Check root-ball moisture frequently, especially in warmth and wind. A densely rooted pot needs a decision about space, not stronger fertiliser solution.
Garden · plan for clumps or runners
Fargesia forms clumps and generally needs no rhizome barrier, but needs room to widen. Phyllostachys forms long runners. Plan suitable containment before planting and regularly inspect edges, joints and new shoots.
Winter · protect roots and water balance
Winter suitability depends on species, cultivar and climate. Container roots are more exposed than roots in the ground. Shelter, suitable container protection and clear drainage help; check moisture on frost-free days. Do not feed during growth rest.
Repotting & division · renew rooting space
Assess the root ball and space in spring. Each division retains living rhizomes and roots; protect young shoots. Fresh compost may already contain fertiliser. Further feeding follows its directions and the plant’s development.
What is changing in your bamboo?
Aphids
Check leaf undersides and young shoots for aphids and sticky deposits. A few old yellow leaves alone do not demonstrate a pest infestation.
Bamboo mites
Look closely at pale patches and webbing beneath leaves. Photograph both surfaces and give the bamboo species when seeking a diagnosis.
Rust and root problems
Have rust-coloured pustules distinguished from simple discolouration. If the root ball remains wet, inspect drainage and roots before adding further treatments.
Rolled or brown leaves
Consider root-ball moisture, sun, wind and recent frost together. Rolled leaves or brown tips alone are not a reason to add fertiliser.
Advice for your bamboo
These details help assess growing conditions, root problems or a possible infestation:
- Photographs of the whole planting, both sides of affected leaves, culms and emerging shoots.
- Bamboo species or cultivar, age, clumping or running habit, garden or container, growing medium and any containment.
- When changes began and how they developed, root-ball moisture, weather, recent division or transplanting and previous feeding and care.
Leaf colour alone identifies neither a nutrient deficiency nor the amount of feed needed. Targeted soil or leaf analysis may help with unclear damage. Identify the cause before choosing a plant-protection treatment.
PLANTS A–Z
Bamboo Fertiliser in the plant guide
Explore position, root space and care for the actual plant species.
View the plant guide
PRACTICAL ADVICE
What limits plant growth
Consider light, water, root space and nutrients together. More fertiliser cannot solve every care problem.
Read the guide
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
How much solution do the three packs make?
At the label dilution, 250 ml of concentrate makes 125 litres of fertiliser solution, the twin pack of 2 × 250 ml makes 250 litres and the 1 litre bottle makes 500 litres. The original labels on the small and large bottles agree on composition and dilution.
How often should I feed bamboo?
Every 1–2 weeks during active growth, normally April to September according to the label. Allow for current growth, existing nutrients and previous feeds. Pause outside the growing period.
Can I feed straight after repotting?
Check the fertiliser already in the compost first. Those nutrients count towards feeding; additional fertiliser begins according to the compost label and plant requirements. There is no single waiting period for every compost.
Do Fargesia and Phyllostachys need the same barrier?
Fargesia forms clumps and generally does not need a rhizome barrier. Phyllostachys produces long runners and needs planned containment that can be inspected. The choice or amount of fertiliser does not resolve this space requirement.
Do yellow leaves always mean a nutrient deficiency?
No. Older leaves are naturally replaced; water, frost, sun and pests can also alter their appearance. Check the affected areas and root ball before changing the feeding schedule.
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 explains safe preparation and application. Use the product-specific dilution shown in the calculator for this Bamboo concentrate. Use half strength for young and sensitive plants according to leaflet 130405.
Storage
Storage & 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.
Do not allow fertiliser residues or rinsing water to enter waterways or wastewater. Follow the disposal instructions on the packaging.
Measure concentrate accurately and apply only after dilution. More fertiliser does not compensate for insufficient light, drought or damaged roots.
Manufacturer / company placing the product on the market
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