Water-soluble & available
All nutrients are water-soluble. In the fully diluted mixture, they are available for feeding through roots and leaves.
Click the image to explore the details
Move your mouse over the image for a closer look
- For strelitzias & heliconias
- 10 ml per 2.5 l water
- 62.5 l of solution per 250 ml
Feeding strelitzias. Understanding their growth habit.
Strelitzia reginae forms a low clump, while Strelitzia nicolai becomes much larger and develops stems. Start with application, then explore the connections between roots, leaf fans and flowers. Heliconias are a different plant genus, although this fertiliser is intended for both.
- NPK declaration
- 5.9 + 8.0 + 10.2With declared trace nutrients.
- Dilution
- 10 ml per 2.5 l of waterEvery 1–2 weeks during active growth.
- Application
- Root & foliarLabelled for Strelitzia and Heliconia.
- Regular application period
- April–SeptemberApply only during active growth.
Product information
Application & dilutionThis product’s own label information.
Application in one place
Measure. Mix. Apply.
Dilution calculator for strelitzias
Enter the water volume you need, or use the height and overall width of one strelitzia as a rough watering guide. Measure the whole leaf fan or clump, not an individual leaf.
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.
A rough root-watering guide for one strelitzia only, not a foliar spray volume. Measure height from the growing-medium surface and the overall width of the leaf fan or clump. Also check pot volume, root-ball moisture, rooting, light and temperature; do not force the suggested amount.
How the guide is calculated
General GREEN24 guide: height (m) × width (m) × 3–4 litres. Centimetres are converted to metres. The concentrate amount follows this fertiliser’s standard dilution. The estimate does not measure individual water requirements.
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. When using the size-based guide, also check root space and actual 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? Every 1–2 weeks during active growth, normally April to September. Water as needed between feeds. Account for pre-fertilisation; pause feeding when growth is low rather than continuing by the calendar alone.
Watering · through the roots
Pre-moisten the root zone and distribute the mixture evenly over the growing medium. Excess water must drain away. A densely rooted container needs sufficient space and suitable moisture, not an independently strengthened fertiliser solution.
Spraying · onto the leaves
Lightly wet existing leaf surfaces in the morning, evening or overcast conditions, avoiding open flowers. Large leaves still receive the standard dilution. Count foliar applications within the same feeding plan as root feeding.
PropertiesThis product’s own label information.
Dilute with water for root or foliar feeding according to the label. The full nutrient declaration has its own information section.
- Net mass: 312 g per 250 ml bottle.
| 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
Two labelled plant groups
For Strelitzia and Heliconia. The plant knowledge here describes Strelitzia, especially S. reginae and S. nicolai; heliconias belong to a different botanical family.
During active growth only
During active growth, normally April–September. Consider light, root condition and nutrients already present together.
Check moisture and existing nutrients
After repotting, allow for fertiliser already in the compost. A new division needs its own roots and suitable moisture before regular feeding makes sense.
Beyond NPK · understand the formulation
Well mixed – available to leaves and roots
Water-soluble nutrients and coordinated formulation properties support strelitzia nutrition. The fully diluted mixture can be applied to the root zone or existing leaf surfaces.
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
Good plant tolerance under suitable application conditions supports new leaves and shoots. Light and root conditions appropriate to the species remain important for your strelitzia’s development.
Understanding leaf quality and flower development
Appropriate nutrition supports leaf formation and green foliage. Leaf finish describes a well-maintained appearance, not a sprayed-on shine. Extra nutrients do not reverse leaf splits; no particular flower count or smaller mature size is promised.
Chelation binds metal ions and can reduce disruptive effects of water hardness; it does not remove calcium or magnesium from the water. The product pH of 6.6 describes the concentrate. The pH of the prepared mixture also depends on the source water; no fixed target value is promised.
Use clean, suitable watering or spraying equipment. Measure the water and calculated concentrate quantity carefully.
Products
Pre-fertilised soil and fertiliser already in the root ball contribute to the nutrient supply. The products listed under “Mixable with this fertiliser” can each be mixed with this fertiliser. When applying them together, follow both products’ specific instructions; conflicting or stricter directions take precedence. Do not mix undiluted concentrates.
Our strelitzia fertiliser is individually compatible with Schädlings-Frei Organic, Trauermückenfrei Organic, KIRON Milben-Ex or Rosen Pilz-Frei BOCCACIO. This confirmation applies to the fertiliser with one product at a time. Follow the specific instructions and stricter conditions of both products.
CompositionThis product’s own label information.
Product pH: 6.6. This describes the product, not the resulting soil pH.
- 5.9% total nitrogen (N), comprising 1.4% nitrate nitrogen, 1.1% ammoniacal nitrogen and 3.4% urea nitrogen.
- 8.0% water-soluble phosphate (P₂O₅).
- 10.2% water-soluble potassium oxide (K₂O).
- 0.01% water-soluble boron (B).
- 0.004% water-soluble copper (Cu), as EDTA chelate.
- 0.02% water-soluble iron (Fe), as EDTA chelate.
- 0.012% water-soluble manganese (Mn), as EDTA chelate.
- 0.001% water-soluble molybdenum (Mo).
- 0.004% water-soluble zinc (Zn), as EDTA chelate.
Plant · care · seeds
Three views of strelitzias
The motifs show Strelitzia reginae. Heliconias belong to a different plant family.
Flowering bird of paradise
Mature Strelitzia reginae can produce orange and blue flowers in bright conditions.
Feeding during growth
10 ml per 2.5 l of water, every 1–2 weeks from April to September.
Ad Meskens · Source · CC BY-SA 4.0
Reduced in size, uncropped.
Seeds and capsules
After successful pollination, leathery capsules with striking seeds develop.
Roger Culos · Source · CC BY-SA 3.0
Reduced in size, uncropped.
Matching products
-
GREEN24
Banana & Strelitzia Compost
From 5.90 €
( 1.18 €/ l)
Compost for strelitzias; account for the starter feed in fresh compost before feeding according to the label.
10 litres · 5 litres
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
-
BERGER
BERGER 5600 planting trowel
10.95 €
Trowel for planting and repotting.
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
-
GREEN24
Expanded Clay 8–16 mm
From 6.95 €
( 1.39 €/ l)
As a drainage layer in the container – strelitzias do not tolerate waterlogging.
10 litres · 5 litres
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.
How your strelitzia obtains nutrients
Roots · uptake & anchorageExplore the root zone and supply the leaf fans.
Strelitzias develop strong, fleshy roots. Absorbing root regions need moisture and oxygen. Protect healthy roots when repotting and maintain drainage; constantly wet compost can impair their function.
Leaves · using lightLong-stalked leaf blades produce sugars for growth and maintenance.
New leaves unfold from the fan. Nitrogen and trace nutrients support their metabolic functions. Larger S. nicolai leaves can split lengthwise; a green split leaf still functions and is not evidence of insufficient fertiliser.
Shoot base & leaf fan · structural growthSupport the leaves and form different growth habits according to species.
S. reginae forms clumps with leaf fans near the ground. S. nicolai becomes larger and stem-forming; it is not a permanently compact indoor alternative. A division needs its own roots and an intact base; a single leaf is not a cutting.
Flowers · maturity and species matterFlower form and readiness to bloom differ between species.
Mature S. reginae can produce orange and blue flowers; in ‘Mandela’s Gold’ the orange part is yellow. S. nicolai has white and blue flowers and rarely blooms in homes. Nutrients support development but cannot replace plant maturity or sufficient light.
How nutrients enter your strelitzia
Select a point in the picture or choose a stage.
Stage 01 / 04
The nutrient solution reaches the strelitzia roots
The fully diluted mixture reaches the strelitzia root zone. Dissolved nutrients are available at the contact surfaces between the growing medium and absorbing root regions.
Good to knowConstantly wet compost can impair the function of the strelitzia’s strong roots.
A closer look
Watering carries dissolved nutrients into the growing medium around the roots. Contact with the absorbing root surfaces is the first step. Constantly wet compost can impair the function of the strelitzia’s strong roots.
Stage 02 / 04
Uptake at the root surface
Absorbing root regions are in contact with the moist growing medium. Cell membranes and transport proteins regulate the entry of dissolved nutrients into root cells.
Good to knowProtect healthy, fleshy roots when repotting and maintain drainage.
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. Protect healthy, fleshy roots when repotting and maintain drainage.
Stage 03 / 04
Root cells regulate uptake
Cell membranes and their transport proteins regulate nutrient uptake. Water movement and nutrient uptake are different processes; this drawing explains their function rather than a microscopic section of a Strelitzia species.
Good to knowMore concentrate cannot replace healthy roots or adequate root space.
A closer look
Cell membranes and their transport proteins regulate nutrient uptake. Water movement and nutrient uptake are different processes; this drawing explains their function rather than a microscopic section of a Strelitzia species. More concentrate cannot replace healthy roots or adequate root space.
Stage 04 / 04
Onwards to petioles and leaf blades
After uptake, water and dissolved nutrients can travel through the xylem towards shoots and leaves. The long petioles connect the leaf blades to the base of the leaf fans.
Good to knowGround-level clumps in S. reginae and the larger, stem-forming habit of S. nicolai are species characteristics.
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. Ground-level clumps in S. reginae and the larger, stem-forming habit of S. nicolai are species characteristics.
Stage 01 / 04
The diluted solution wets the strelitzia leaf
The fully diluted mixture wets the leaf surface. Avoid open flowers and spray only under suitable application conditions.
Good to knowFoliar application belongs to the same feeding plan as root application; avoid open strelitzia flowers.
A closer look
Foliar feeding places diluted nutrient solution on the leaf surface. Wetting depends on factors including the leaf surface and the solution. Foliar application belongs to the same feeding plan as root application; avoid open strelitzia flowers.
Stage 02 / 04
Uptake across the strelitzia leaf surface
The leaf surface protects the living tissue. Dissolved nutrients can pass this barrier; leaf characteristics and application conditions influence uptake.
Good to knowLengthwise splits in green S. nicolai leaves do not automatically indicate insufficient fertiliser.
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. Lengthwise splits in green S. nicolai leaves do not automatically indicate insufficient fertiliser.
Stage 03 / 04
Strelitzia 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 knowNew leaves unfold from the leaf fan. Their growth requires suitable growing conditions as well as nutrients.
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. New leaves unfold from the leaf fan. Their growth requires suitable growing conditions as well as nutrients.
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 knowNutrient supply cannot replace the maturity S. reginae needs to flower or adequate light; S. nicolai rarely flowers in homes.
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. Nutrient supply cannot replace the maturity S. reginae needs to flower or adequate light; S. nicolai rarely flowers in homes.
Development influences requirements
Establishment, leaf development and slower growth
Young plants & rooted divisions
Young strelitzias are initially grown for their foliage. After division or repotting, first secure healthy roots, suitable moisture and drainage, and account for existing fertiliser. A flower photograph does not mean the plant is immediately mature enough to bloom.
New leaves & side shoots
New leaves develop in the bright, warm growing season. Feed at the stated interval and monitor root-ball moisture and available space. Slow growth or absent flowers alone do not justify more concentrate.
Winter · evergreen, often slower
Strelitzias remain evergreen; complete autumn leaf fall is not part of their normal cycle. In low light and slow growth, reduce watering as needed and pause feeding. A bright, warm room can have different water requirements from cooler winter accommodation.
Consider species, maturity, light, root space and existing nutrients together. Height alone determines neither a different dilution nor individual water requirements.
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.
Where is your strelitzia growing?
Container · root space and stability
Choose a stable container with open drainage. During growth, maintain even moisture without leaving the roots standing in water. Plan an appropriate pot change when root space becomes tight.
Summer position · acclimatise to sun
A warm, sheltered outdoor position can suit the plant in summer. Acclimatise gradually to direct sun after indoor conditions and bring plants inside before cold nights. Protect large leaves from bending and strong wind when moving them.
Room & winter accommodation · maintain light
Overwinter in bright, frost-free conditions and water less when growth slows. Check leaf undersides and stalk bases for spider mites, scale insects and mealybugs. Choose a position where the large fans are not permanently pressed against ceilings or windows.
Repotting & division · protect the roots
When roots fill the pot, move to a slightly larger container in spring or early summer. Retain planting depth and protect fleshy roots; move large specimens with another person. Allow for fertiliser already present in fresh compost before further feeding.
What is changing on your strelitzia?
Scale insects and mealybugs
Inspect leaf undersides and stalk bases for attached scales, white waxy deposits and sticky residue. Separate affected plants and identify the pest before treatment.
Spider mites
Pale stippling and fine webbing call for inspection of leaf undersides with a magnifier. Dry indoor air and warm conditions favour problems.
Root rot and persistent wetness
If compost stays wet and leaves or leaf bases soften, check drainage and roots. Do not respond with extra fertiliser; seek advice for unexplained damage.
Split leaves and brown margins
Lengthwise splits can result from wind or mechanical stress. For brown margins, also check root-ball moisture, dry air and salt build-up; the appearance alone does not establish a nutrient deficiency.
No flowers
For S. reginae, first consider maturity, light and previous growing conditions. Lack of flowers is usual for S. nicolai indoors. Do not increase the fertiliser dose for this reason.
Advice for your strelitzia
These details help assess growing conditions, root problems or a possible infestation:
- Photos of the whole plant, leaf fans and newest growth, plus both surfaces of affected leaves. Include the leaf bases.
- Species or cultivar, plant age, pot size and growing medium; distinguish S. reginae from S. nicolai if possible.
- Summer and winter positions, onset of changes, root-ball moisture, recent repotting or division, and previous feeding.
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.
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 species and authorised application site.
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 and follow the authorised application.
Mixable with GREEN24 liquid fertilisersView product & application
Mixability applies to fertiliser plus one product at a time, not to all products mixed together. Follow crop, pest, application site, dose, waiting periods and the stricter requirements of both sets of instructions. Do not mix undiluted concentrates.
Use plant protection products safely. Always read the label and product information before use.
PLANTS A–Z
Strelitzias – Plants A–Z
Species, position, repotting and winter care.
Read more
PRACTICAL ADVICE
Recognise nutrient needs
Consider growing conditions and nutrition together.
Read more
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
How much fertiliser do I need per watering?
The label specifies 10 ml – two caps – per 2.5 l of water. How much solution you use depends on pot size and the plant’s actual water needs.
How often should I feed?
Follow the label: every 1–2 weeks during active growth, usually April to September. Pause feeding in winter when growth slows.
How much solution do 250 ml and the twin pack make?
At 10 ml per 2.5 l, 250 ml makes a calculated 62.5 l and the twin pack (2 × 250 ml) 125 l of fertiliser solution.
Will more fertiliser help if my strelitzia does not flower?
No. For Strelitzia reginae, first check maturity and light; Strelitzia nicolai rarely flowers indoors. Do not exceed the label dose.
Can I also use it for heliconias?
Yes, the label names strelitzias and heliconias. Heliconias are a separate plant family; match position and care to the species.
Safety and storage
Safety instructions
SDS – Safety data sheet available on request.
- Shake before use. Never apply undiluted.
- Preferably use low-lime water or rainwater at 15–25°C.
- Do not apply in direct sunlight, below 5°C or above 30°C.
- Feed the pre-moistened root zone or spray foliage; avoid open flowers.
- Keep out of reach of children and animals.
Avoid contact with eyes, skin and clothing. Do not inhale spray mist. Wear protective clothing, rubber gloves and safety glasses when handling the product. Keep away from food and beverages. Wash your face and hands thoroughly after use. Official advisory recommendations take precedence. Fertilisers may leave permanent stains on surfaces. Do not allow fertiliser to enter bodies of water or wastewater.
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 mixing and application. Use this strelitzia concentrate’s own dilution in the calculator and account for root and foliar applications together.
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 large temperature fluctuations. Temperature-related discolouration or crystals may occur; the crystals dissolve by the dilution stage at the latest and do not impair product quality. For this fertiliser, store dry and dark above 8 °C and at no more than 38 °C. Use diluted fertiliser promptly.
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
Guides for this product
Similar products
-
GREEN24
Strelitzia Repotting Set
15.95 €
Repotting kit as a purchase alternative; already includes 250 ml strelitzia fertiliser.
10 l compost + 250 ml fertiliser
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
-
GREEN24
Banana Fertiliser
From 11.95 €
( 47.80 €/ l)
For banana plants (Musa) – the strelitzia's neighbours in the conservatory.
250 ml · 500 ml – twin pack (2 × 250 ml) · 1 litre
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
-
GREEN24
Palm Fertiliser
From 9.95 €
( 39.80 €/ l)
For palms in containers and conservatories.
250 ml · 500 ml – twin pack (2 × 250 ml) · 1 litre
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
-
GREEN24
Banana Repotting Set
15.95 €
Repotting kit for banana plants: 10 l compost and 250 ml fertiliser.
10 l compost + 250 ml fertiliser
Delivery time: In stock · 1–3 days (DE)
Incl. VAT, plus shipping costs
Plant sick? Identify a plant? Take a photo – GREEN24AI helps right away.
Plant species, pests, diseases and care in seconds – plus products that really fit, free of charge.