Water-soluble & available
All nutrients are water-soluble and available for root or foliar uptake in the properly diluted solution.
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Using monstera fertiliser correctly
Concentrate for monstera and philodendron plants. Find the dilution, feeding period and how to apply it to roots or foliage below.
- Declared NPK
- 4.9 + 2.6 + 3.9With declared trace nutrients.
- Dilution
- 10 ml per 2.5 l of waterEvery 2–3 weeks during the growing season.
- Application
- Roots & foliageDilute before use.
- Regular application period
- March–OctoberOnly during active growth.
Product information
Application & dosageCalculate dilution, mix and apply appropriately.
Application in one place
Measure. Mix. Apply.
Monstera & Philodendron mixing calculator
Enter your water amount or use plant height and width for a rough watering-volume guide. Choose the half dose for young or sensitive plants.
Your water amountRough watering-volume guide
2.5 l
Matching concentrate amount
10 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.
For watering the roots in the growing medium, not for spraying leaves. For Monstera and Philodendron, pot size, compost moisture and root development also matter. Water only when needed and allow excess to drain; do not apply the entire guide volume regardless of the pot’s needs. Measure height above the growing medium and plant width, not the length of individual trailing stems.
How the guide is calculated
General GREEN24 guide: height (m) × width (m) × 3–4 litres. Centimetres are converted to metres automatically. The concentrate amount always follows this fertiliser’s dilution and the selected dose level. This guide does not measure individual water demand and is not a hydroponic feeding programme.
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 your water amount. Select the half dose for young or sensitive plants.
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? Every 2–3 weeks during active growth, usually March–October. Between feeds, water as needed without fertiliser; allow for nutrients already in the compost and previous feeds.
Watering · through the roots
Moisten the root ball first, then distribute the mixture across the root zone. Let excess water drain through the pot; do not leave nutrient solution standing in a cachepot.
Spraying · onto the leaves
Wet the foliage lightly in the morning, evening or under overcast conditions, avoiding open inflorescences. Root and foliar feeding belong to one programme, not two parallel routines.
Characteristics · Monstera & PhilodendronThe concentrate and its pack sizes at a glance.
Net mass on the 250 ml label: 275 g.
Twin pack: two 250 ml bottles of the same concentrate.
| Pack size | Price | Yield at label dilution |
|---|---|---|
| 250 ml | 9.85 € Unit price ( 39.40 €/ l) | 62.5 l |
| 500 ml – twin pack (2 × 250 ml) | 18.95 € Unit price ( 37.90 €/ l) | 125.0 l |
Yield is calculated from the recommended standard dilution.
Fits your care routine
Monstera & Philodendron
For Monstera and Philodendron. Climbing, trailing or upright: the particular species determines its growth habit and space requirements.
During active growth
During new leaf and shoot growth; the usual European season is March–October. Do not force a feeding routine when light is poor and growth has stopped.
Allow for fresh compost
Pre-fertilised compost already supplies nutrients. After repotting, follow its feeding guidance; address damaged or dried-out roots first.
Beyond NPK · understand the formulation
Well mixed – available to leaves and roots
The formulation combines mineral nutrition with straightforward application. For Monstera and Philodendron, the focus is developing foliage, shoots and a healthy root zone.
Protected trace nutrients
Copper, iron, manganese and zinc are bound as EDTA chelates. This helps keep these micronutrients available in solution, including for metabolic processes in broad leaves.
pH buffering in the mixture
The buffer system supports pH regulation in the prepared watering or spray solution. The actual value also depends on the source water; no fixed target pH is promised.
Even coverage on the leaf
Wetting and adherence help distribute the spray solution across the leaf surface, where dissolved nutrients are available for uptake.
Fewer hard-water effects
The formulation helps reduce hardness-related interference and residues on broad leaves. Low-lime water remains a suitable starting point.
For sensitive foliage plants
High plant tolerance with correct use supports foliage development. Choose the half dose for young or sensitive plants; address damaged roots first.
Understanding leaf quality
Appropriate nutrition supports leaf formation and greenness. Leaf finish means an even, well-cared-for appearance, not a sprayed-on gloss coating. Species, light and maturity also shape natural leaf patterns and form.
Chelation binds metal ions and can reduce troublesome hard-water effects; it does not remove calcium and magnesium from the water. Actual pH also depends on your source water. No specific target pH or complete softening is promised.
Suitable for compatible fertiliser dosing equipment. Set equipment to this product’s dilution and follow the device instructions.
Products
Fresh, pre-fertilised houseplant compost already contains nutrients. Account for these in your routine rather than automatically adding another complete fertiliser. Do not mix undiluted concentrates together.
Like all GREEN24 liquid fertilisers, this fertiliser is mixable individually with Schädlings-Frei-Organic, Trauermückenfrei Organic, KIRON Milben-Ex or Rosen Pilz-Frei BOCCACIO. This confirms mixing with one product at a time, not authorisation for every houseplant. Follow the permitted use, target organism and stricter instructions of both products.
Nutrient composition · NPKDeclared nutrients and their forms.
Declared percentages. Product pH stated on the label: 6.8.
Product pH does not specify the pH of the diluted solution or soil.
- 4.9% total nitrogen (N), including 4.8% urea nitrogen.
- 2.6% water-soluble phosphate (P₂O₅).
- 3.9% water-soluble potassium oxide (K₂O).
- 0.005% boron (B).
- 0.002% copper (Cu).
- 0.01% iron (Fe).
- 0.006% manganese (Mn).
- 0.0005% molybdenum (Mo).
- 0.002% zinc (Zn).
- Copper, iron, manganese and zinc as EDTA chelates.
GREEN24 · Plant knowledge
Monstera & Philodendron: understanding leaves and roots
Light, water, root space and nutrients work together. These scenes show the plant and its care; they do not demonstrate a fertiliser effect.
Leaves use light
Large leaf surfaces use light to produce sugars. Appropriate nutrition complements light, water and healthy roots; it does not replace these conditions.
Leaf form develops
Natural splits and openings also depend on species, maturity and growing conditions. A higher dose does not force splits to appear.
Philodendron is a distinct genus
Heart-shaped leaves and trailing stems show a different growth habit. Consider your own plant's position, root space and water needs.
Matching products
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GREEN24
Monstera & Philodendron Compost
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Choose suitable compost for repotting and allow for any nutrients already included when planning further feeding.
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Incl. VAT, plus shipping costs
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GREEN24
Kalk-Frei – Anti-Kalk concentrate for watering water
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Dr. Stähler
Dr. Stähler yellow sticky plant traps – pack of 12
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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.
What does a plant do with nutrients?
Roots · absorb & anchorExplore the limited root space inside the pot.
Fine roots need contact with moist compost as well as oxygen. An open structure and drainage help provide both. Feed the pre-moistened root ball with diluted solution, never with concentrate applied directly to roots.
Leaves · capture energyGreen leaf tissue makes sugars for the whole plant.
The green areas of the broad leaves use light for photosynthesis. Nitrogen is needed for chlorophyll and proteins, among other things. White sectors of variegated plants do not perform like green tissue; extra fertiliser cannot replace light or green leaf area.
Stem · support & connectConnect roots and leaves; growth habit remains species-specific.
Xylem carries water and absorbed nutrients through the stem; phloem transports sugars and other substances. Monstera climbs, while Philodendron includes climbing, trailing and upright forms. Support climbing stems without tying leaf stalks tightly to a support.
Aerial roots · anchorage & contactGrow from the stems of many climbing aroids.
In Monstera and climbing philodendrons, aerial roots can anchor to a suitable support and contribute to supply when they contact moist growing media. They are not a reason for an extra concentrated spray. Nutrient solution remains part of the regular feeding routine.
New leaf · unfurl & matureInitially receives support from established leaves.
A developing leaf unfolds and then matures. Leaf size, shape and Monstera splits depend on species, maturity, light and growing conditions, among other factors. Do not force a leaf open or increase the dose because splits are absent.
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 Monstera & Philodendron
Select a point in the picture or choose a stage.
Stage 01 / 04
Water carries nutrients to the roots
The mixture reaches the compost around the fine roots. Dissolved nutrients are available at the interface between roots and growing media.
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
Roots take up dissolved nutrients
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
An inner layer controls the route
On their way into the root, nutrients meet a special layer of cells. It prevents substances from simply flowing through the gaps between cells and helps the plant control uptake.
Good to knowMore fertiliser does not automatically mean better nutrition.
A closer look
Nutrients move through the root tissues. The endodermis acts as a control layer: its barrier interrupts unrestricted movement along the cell walls.
Stage 04 / 04
Transport channels carry water and nutrients
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
Diluted solution is applied to the leaf
Prepared solution wets the leaf surface. Keep open inflorescences clear; do not concentrate extra solution onto aerial roots.
Good to knowThis Monstera & Philodendron Fertiliser allows foliar application. Always use the properly diluted mixture.
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
Nutrients must cross the protective 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
Cells inside the leaf 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
Nutrients are used in the leaf and may move onward
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
Care that follows each flush of growth
Young plant & establishment
For rooted young plants, check root space, moisture and light first. Use the half dose for young or sensitive plants and allow for pre-fertilised compost. Do not treat unrooted cuttings like established potted plants.
New leaves & shoots
When leaves unfold and shoots develop, feeding can be part of the care routine. Keep the feeding interval separate from watering: not every necessary watering needs fertiliser.
Lower light · slower growth
During short days and slower growth, compost often dries more slowly. Check moisture before watering and do not force feeding when growth has stopped. Longer vines do not automatically mean greater demand.
Actual development matters: species, location and season affect the pace. Plant size alone determines neither dose level nor watering volume.
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 your Monstera or Philodendron grow?
Indoors · enough light to grow
A bright position without harsh midday sun supports leaf development. Gently remove dust from broad leaves. Extra fertiliser cannot compensate for growth slowed by persistently poor light.
Climbing · support the stem
As they grow, Monstera and climbing philodendrons benefit from stable support. Guide the stem without constricting aerial roots or leaf stalks. A support does not justify a stronger nutrient solution.
Trailing or upright · species matters
Heart-leaf philodendron can trail or climb; other philodendrons grow more compactly and upright. Long vines and large leaves reflect different habits, not one common water demand per centimetre.
Pots & repotting · consider the roots
A draining pot and open, stable compost help manage moisture. After repotting, account for nutrients already in the new compost. This guide does not establish a programme for hydroponics or a permanent nutrient reservoir.
What is changing on your foliage plant?
Mealybugs and scale
Check leaf axils and undersides for white clusters, scales or honeydew.
Root rot
Check soft roots and persistently wet medium; do not simply water more often.
Brown or small leaves
Check light, watering and root space. Juvenile Monstera leaves naturally have fewer splits.
Plant health advice for Monstera & Philodendron
These details help distinguish growing conditions, root or nutrition problems and an infestation:
- Photos of the whole plant, both leaf surfaces, leaf stalks and affected stem nodes.
- Species or cultivar, pot size, compost and position near a window; root photos where relevant.
- When symptoms began and progressed, pot moisture, repotting date and previous fertiliser or plant protection applications.
Select plant protection products only after identifying the problem and checking the authorised crop and growing location. Mixability alone is not a recommendation for use on Monstera or Philodendron.
Mixable with this fertiliser
These 2 products can each be mixed with this fertiliser.
-
Dr. Stähler
Schädlings-Frei-Organic
11.45 € Unit price ( 381.67 €/ l)
Insect control: check the pest, plant and authorised growing location.
Mixable with GREEN24 liquid fertilisersView product & application -
Dr. Stähler
KIRON Milben-Ex – 30 ml
14.95 € Unit price ( 498.33 €/ l)
Mite control: identify the infestation first and check the authorised use.
Mixable with GREEN24 liquid fertilisersView product & application
Mixability applies to fertiliser plus one product at a time, not to all products mixed together. It does not replace crop or use authorisation. Follow both sets of directions and the stricter conditions; do not mix undiluted concentrates.
Use plant protection products safely. Always read the label and product information before use.
PLANTS A–Z
Explore Monstera & Philodendron
Read about position, watering and seasonal care in the linked plant profile.
View the plant profile
PRACTICAL ADVICE
Why more fertiliser cannot solve everything
The law of the minimum explains how a factor in short supply can limit growth. More fertiliser cannot replace missing light, water or healthy roots.
Understand the law of the minimum
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
How much solution does 250 ml make?
At 10 ml per 2.5 litres of water, 250 ml makes 62.5 litres of prepared solution. The twin pack makes 125 litres.
Is Monstera a Philodendron?
No. Both belong to the arum family but are different genera. Their plant profiles help distinguish growth habit, leaves and care.
Will extra nutrients produce more leaf splits?
Not on their own. Leaf development depends on species, maturity, light and growing conditions, among other factors. Do not increase the dose because young leaves are entire.
Can I feed immediately after repotting?
Check the nutrient charge in the new compost. Those nutrients count towards the plant’s supply. Recently damaged roots first need suitable moisture and growing conditions.
Can I combine root and foliar feeding?
The two label applications are alternative routes within one nutrient programme, not two parallel feeding programmes. For combinations with other products, follow their respective application directions.
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.
Avoid contact with eyes, skin and clothing. Do not inhale spray mist. Wear protective clothing, rubber gloves and safety glasses and use clean, suitable equipment. Keep away from food and beverages. Wash hands and face thoroughly after use. Do not allow fertiliser or rinse water to enter drains or bodies of water.
Follow the label and 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 general leaflet explains safe preparation and use. Apply the product dilution shown above for this Monstera & Philodendron Fertiliser; general increases mentioned in the leaflet are not extra calculator settings.
Storage
Storage & product quality
Store in a dry, dark place 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.
Avoid strong temperature fluctuations. Excessively high or low storage temperatures can cause discolouration and crystals. These crystals dissolve by the time the product is diluted; this does not affect product quality.
The packaging is suitable for material recycling and marked accordingly. Only send thoroughly cleaned containers to the appropriate recycling system. Never empty residual product or rinsing water into sewers, other drains or bodies of water.
Our information reflects current knowledge and describes the product and its uses. When the instructions are followed, the product is suitable for the recommended purposes. Storage and application are outside our control, and not all circumstances can be foreseen. We stand behind sound product quality at the time of delivery.
Manufacturer / company placing the product on the market
Guides for this product
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