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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Feed conifers. Understand their differences.
Conifers include trees and shrubs with needles or scale leaves. Pines, thuja, yews and larches differ in habit, foliage retention and site requirements. This guide connects use of the concentrate with knowledge for your particular garden or container plant.
- Declared NPK
- 5.6 + 2.2 + 3.3With declared trace nutrients.
- Dilution
- 5 ml per 1 l of waterEvery 3–4 weeks during the growing season.
- Application
- Roots & foliageDilute with water before use.
- Regular application period
- April–AugustApply only during active growth.
For your conifers
For the conifer group
For conifers with needles or scale leaves. Genus and cultivar determine the further growing plan; Ginkgo and indoor Norfolk Island pines are not included under a single shared care description.
During active growth
During active growth, normally April–August. Account for soil nutrients, fresh compost and previous applications.
In containers and gardens
Fresh compost may already contain fertiliser. After planting or repotting, account for its initial nutrients and root condition when planning further feeding.
Application in one place
Measure. Mix. Apply.
Dilution calculator for conifers
Enter the amount of water actually needed. The height and full crown width of one conifer can alternatively provide a rough watering guide. For hedges, use the water-volume mode, not the total hedge length as plant width.
Your water amountRough watering-volume guide
1 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 conifer only. Measure height from soil level and the full leafy crown width, not individual needles or trunk circumference. For a hedge, enter the actual water volume. Check moisture, soil, roots and weather; do not force the suggested volume. This is not a foliar spray volume.
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 dilution. The guide 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 or measure one conifer. For hedges, calculate from the actual water volume. Check root-ball moisture and drainage before watering.
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 3–4 weeks during active growth, normally April to August. Account for soil nutrients, fresh compost and previous fertiliser applications. Water as needed between feeds; do not fertilise during the resting period.
Watering · through the roots
Pre-moisten the root ball and distribute the solution through the absorbing root zone. Do not water only immediately beside the trunk. Ensure drainage in containers; address the cause of waterlogging or drought-damaged roots first.
Spray · onto needles or scale leaves
Finely wet needles or scale leaves in the morning, evening or under overcast skies, avoiding open flowers. Foliar feeding belongs to the same nutrition plan as root feeding. A different leaf shape does not justify a higher spray concentration.
Properties & pack sizes Pack details for 250 ml and 1 litre
Net mass: 273 g for 250 ml; 1094 g for 1 litre.
The dilution is the same for both pack sizes.
| Pack size | Price |
|---|---|
| 250 ml | €9,85 EUR |
| 500 ml – twin pack (2 × 250 ml) | €18,95 EUR |
| 1 litre | €29,95 EUR |
Nutrient composition NPK 5.6 + 2.2 + 3.3
Declared nutrient percentages. Product pH: 6.8.
- 5.6% total nitrogen (N)
- 5.6% urea nitrogen
- 2.2% water-soluble phosphate (P₂O₅)
- 3.3% water-soluble potassium oxide (K₂O)
- 0.005% boron (B)
- 0.002% copper (Cu) · EDTA chelate
- 0.01% iron (Fe) · EDTA chelate
- 0.006% manganese (Mn) · EDTA chelate
- 0.0005% molybdenum (Mo)
- 0.002% zinc (Zn) · EDTA chelate
Compost, other fertilisers & care products
Pre-fertilised soil and fertiliser already in the root ball contribute to the nutrient supply. Each of the four care products listed below can be mixed with our liquid fertiliser. When applying them together, follow both products’ specific instructions; conflicting or stricter directions take precedence. Do not mix undiluted concentrates.
Our conifer fertiliser is compatible individually with Schädlings-Frei Organic, Trauermückenfrei Organic, KIRON Milben-Ex or Rosen Pilz-Frei BOCCACIO. This confirmation covers the fertiliser plus one of these products at a time. Follow the specific instructions and any stricter conditions of both products.
Request the compatibility table →Beyond NPK · understand the formulation
Well mixed – available to leaves and roots
Water-soluble nutrients and formulation properties support mineral nutrition in conifers. The diluted solution can be applied to the root zone or to needles and scale leaves.
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 adhesion help distribute the spray solution over needles and scale leaves. Dissolved nutrients are available there for foliar uptake; wetting alone does not establish how much has been absorbed.
Reduce hard-water effects
The formulation helps reduce unwanted effects of hard water and deposits on needles and scale leaves. Low-lime water or rainwater provides a useful starting point.
Feed with plant tolerance in mind
High plant compatibility under appropriate use is relevant to sensitive crops too. The specified dilution and protection from sun and heat remain important for young conifer shoots.
Understand leaf function and growth
Nitrogen is needed to build chlorophyll and proteins, phosphorus for energy transfer, and potassium for water regulation and transport. These functions concern needles and scale leaves as well as growing roots and shoots. Well-maintained foliage does not mean a promised colour; blue, golden and deciduous cultivar characteristics still matter.
Chelation can reduce unwanted hard-water effects; it does not remove calcium or magnesium from the water. Product pH 6.8 describes the concentrate, not the soil or a fixed target pH for the finished solution. The starting water also influences the solution’s pH.
Use clean, suitable watering or spraying equipment. Measure the water and calculated concentrate quantity carefully.
A closer look at conifers
Needles. Scale leaves. Different growth habits.
Pines carry needles, while thuja usually has closely overlapping scale leaves. Cushion forms, columns and large trees need different amounts of space. Many conifers are evergreen; larch, dawn redwood and bald cypress shed their foliage in autumn.
Understand your own conifer.
The concentrate supplements mineral nutrition during growth. It does not replace a suitable site or checks of soil moisture and roots. A compact cultivar remains compact; additional fertiliser does not restore foliage on bare old thuja branches.
Needles are leaves
Pine needles occur in bundles whose number varies by species; larches carry softer needles and are deciduous. Old inner needles can change colour during normal foliage renewal. Dying shoot tips or larger brown patches need a separate assessment.
Scale leaves form dense sprays
Thuja and many members of the cypress family have small, overlapping scale leaves. Green outer shoots need light. Do not routinely cut into old bare wood; the ability to regenerate differs between genera.
New shoots and natural habit
New shoots extend the leafy crown. Dwarf pines, columnar thuja and large larches grow at different rates and widths. Natural habit is not a reason to increase fertiliser concentration.
One of many conifer forms
This motif shows scale-like foliage. Needle-bearing and deciduous conifers look different. Care still depends on the genus, cultivar, mature size and site of the actual plant.
From the root zone into the crown
How do conifers use nutrients?
The absorbing root regions of your conifer take up water and dissolved nutrients. Conducting tissue in the wood connects the roots with needles, scale leaves and young shoots. Green foliage uses light to produce sugars for metabolism and growth. Nitrogen supports the formation of chlorophyll and proteins, phosphorus energy transfer, and potassium water regulation. Evergreen conifers replace older foliage gradually; in larches and other deciduous genera, autumn leaf fall is part of the annual cycle.
Roots · absorb and anchorAbsorbing roots access soil water and dissolved nutrients.
Moisture and oxygen must both be available around the roots. Soil requirements differ between conifer species. Mycorrhizal fungi help many conifers interact with the soil; the ectomycorrhiza common in pines is not one uniform model for every conifer genus.
Woody framework · support & conductThe trunk and branches support the crown and connect roots, foliage and shoots.
Xylem carries water and dissolved substances upwards. Sugars from green foliage move through other conducting tissue to growing or storage tissues. A leading shoot is part of many upright forms; routine topping is not a necessary feeding or care measure.
Needles & scale leaves · use lightNarrow needles and small scale leaves also carry out photosynthesis.
Nitrogen is part of chlorophyll and proteins; iron and manganese have further metabolic roles. Leaf shape and protective surfaces differ between genera. Bluish or golden cultivar colour and normal foliage renewal are not automatically signs of deficiency.
Young shoots · continue growthNew shoots extend the leafy crown according to species and cultivar.
New cells require nutrients and sugars made by the plant. Phosphorus contributes to energy transfer. Growth rate and regeneration also depend on the genus: yews can reshoot from older wood, while many thuja and cypresses do not reliably regrow from bare old sections.
Understanding plant feeding
How nutrients enter your conifer
Conifers use their needles or scale leaves for photosynthesis. The sugars produced and absorbed nutrients are needed for processes including new shoot growth. Absorbing fine roots access dissolved nutrients in the soil; moisture and oxygen must both be available in the root zone. Foliar feeding wets the existing green foliage with the diluted solution, and its surfaces differ between genera. Root and foliar applications belong to one feeding plan. The functional diagram uses a needle-leaved conifer as an example, not as a universal tissue model for all conifers.
Select a point in the picture or choose a stage.
Stage 01 / 04
The solution reaches the root zone
Apply the finished dilution to the pre-moistened root zone. Soil water brings dissolved nutrients into contact with absorbing root surfaces.
Good to knowCheck soil moisture and drainage before feeding; brown needles alone do not establish a need.
A closer look
Apply the finished dilution to the pre-moistened root zone. Soil water brings dissolved nutrients into contact with absorbing root surfaces. Check soil moisture and drainage before feeding; brown needles alone do not establish a need.
Stage 02 / 04
Uptake at living root regions
Absorbing fine roots are in contact with the soil. In many conifers, mycorrhizal fungi extend the soil volume explored. This does not replace regulated entry into living plant cells.
Good to knowPine mycorrhiza is one example, not a uniform fine-root structure for all conifers.
A closer look
Absorbing fine roots are in contact with the soil. In many conifers, mycorrhizal fungi extend the soil volume explored. This does not replace regulated entry into living plant cells. Pine mycorrhiza is one example, not a uniform fine-root structure for all conifers.
Stage 03 / 04
Root cells regulate entry
Membranes and transport proteins regulate uptake of dissolved nutrients. This differs from the movement of water alone. Healthy, oxygenated roots remain essential.
Good to knowDo not try to correct waterlogging or damaged roots with more concentrate.
A closer look
Membranes and transport proteins regulate uptake of dissolved nutrients. This differs from the movement of water alone. Healthy, oxygenated roots remain essential. Do not try to correct waterlogging or damaged roots with more concentrate.
Stage 04 / 04
Through the wood towards the foliage
Xylem can carry water and absorbed nutrients towards needles, scale leaves and shoots. Transport and use also depend on growth stage and root function.
Good to knowThe slower growth of a dwarf conifer is not a reason to feed more strongly.
A closer look
Xylem can carry water and absorbed nutrients towards needles, scale leaves and shoots. Transport and use also depend on growth stage and root function. The slower growth of a dwarf conifer is not a reason to feed more strongly.
Stage 01 / 04
The solution wets needles or scale leaves
Distribute the finished dilution finely over green foliage. Follow the specified temperature and light conditions.
Good to knowPlan root and foliar applications together rather than automatically feeding twice.
A closer look
Distribute the finished dilution finely over green foliage. Follow the specified temperature and light conditions. Plan root and foliar applications together rather than automatically feeding twice.
Stage 02 / 04
Across the protective leaf surface
Needles and scale leaves have protective surfaces. Dissolved nutrients can cross them; species, leaf age and conditions influence the amount taken up.
Good to knowDifferent leaf shapes do not justify a higher spray concentration.
A closer look
Needles and scale leaves have protective surfaces. Dissolved nutrients can cross them; species, leaf age and conditions influence the amount taken up. Different leaf shapes do not justify a higher spray concentration.
Stage 03 / 04
Use within living foliage cells
After crossing the surface, leaf cells can take up nutrients and use them in metabolism. Nitrogen, phosphorus and potassium have different roles. A visible drop does not itself prove uptake.
Good to knowCultivar colour and natural shedding of old needles must still be distinguished from deficiency.
A closer look
After crossing the surface, leaf cells can take up nutrients and use them in metabolism. Nitrogen, phosphorus and potassium have different roles. A visible drop does not itself prove uptake. Cultivar colour and natural shedding of old needles must still be distinguished from deficiency.
Stage 04 / 04
Use and possible redistribution
Redistribution from foliage depends on the nutrient and plant condition. Not every nutrient reaches other organs to the same extent. This does not establish immediate feeding of the entire conifer.
Good to knowBrown old sections do not regrow simply because a foliar feed is applied.
A closer look
Redistribution from foliage depends on the nutrient and plant condition. Not every nutrient reaches other organs to the same extent. This does not establish immediate feeding of the entire conifer. Brown old sections do not regrow simply because a foliar feed is applied.
Development influences requirements
Distinguish establishment, new growth and rest
Establishment & young conifers
After planting, even root-ball moisture, soil contact and protection from drying wind matter. Account for pre-fertilised compost and existing nutrients. No additional young-plant dilution setting is verified for this concentrate.
Needle, scale-leaf and shoot development
Feed at the specified interval during active growth. Dwarf forms naturally grow more slowly than tree-sized conifers. Do not try to change their growth habit through extra or more concentrated applications.
Resting period · with or without green foliage
Green winter foliage does not automatically mean active growth. Do not fertilise during rest, but check root-ball moisture in frost-free weather. Autumn foliage loss is normal in larch, dawn redwood and bald cypress.
Genus, cultivar and foliage age help interpretation. Compare normal inner foliage renewal with new damage to outer shoots. Seasonal changes do not establish an additional dilution setting.
Application & calculator →Your growing conditions matter
Specimen, hedge or container?
Conifers do not share one standard site: pines and junipers generally need plenty of light, while yews also tolerate shade. Soil and water requirements differ too. Choose the growing plan by genus, cultivar and habit, not just by the label conifer.
Container · account for limited root space
Use a pot suited to the plant’s habit with open drainage holes. Check root-ball moisture regularly without keeping every conifer equally wet. Account for initial nutrients and planting depth when repotting; fertiliser concentration remains unchanged.
Garden · match species and soil
Choose light, soil moisture and future space according to species: pines generally prefer sun, while yews tolerate shade. Maintain the original planting depth. Established conifers in adequately supplied soil do not automatically need regular supplementary feeding.
Winter · consider site and origin
Hardiness is not uniform across the group. Hardy outdoor species stay outside; more tender Mediterranean cypresses need protection suited to the region. Protect container roots from severe freezing and do not leave evergreen foliage over a dry root ball. Norfolk Island pines need their own indoor care plan.
Hedge · retain the green outer growth
For suitable hedge forms, a narrower top helps light reach the lower branches. Do not cut thuja and many cypresses deeply into bare old wood. Yews are an important exception in their ability to regenerate. Check for occupied bird nests before clipping.
For your conifer’s root zone
Tree & Shrub Compost is the existing woody-plant growing medium for planting and potting. Account for its initial nutrient supply and the soil and moisture requirements of your conifer species.
-
Tree & Shrub Compost
€8,90 View product10 litres of Tree & Shrub Compost. Include its initial nutrient supply when planning further feeding.
Understand plant care problems
What is changing on your conifer?
Brown needles, bare hedge sections and dying shoot tips have different causes. Check genus, foliage age, soil moisture, drainage, frost damage and pruning. Extra fertiliser is not a general treatment for these changes.
Needle renewal or stress?
Older inner needles are naturally replaced. Large brown patches and wilting shoot tips instead call for a check of soil moisture, drying winds, frost and previous pruning.
Conifer aphids
Inspect shoots for aphids, sticky honeydew and dark sooty mould. Green spruce aphid can damage older spruce needles, especially after mild winters; identify both plant and pest.
Scale insects on scale foliage
Check junipers, cypresses and arborvitae for small attached pale or brown scales. Not every deposit signals a severe infestation; juniper scale does not produce honeydew.
Damaged roots
If a plant fades and browns despite wet soil, inspect drainage and roots. Waterlogging and root diseases such as Phytophthora can look alike; reliable identification may require specialist diagnosis.
Advice for your conifer
These details help distinguish normal foliage renewal, site problems and possible pests:
- Photos of the whole plant or hedge section, damaged and healthy shoots for comparison, needles or scale leaves, and the base of the trunk.
- Genus and cultivar, planting date, specimen or hedge, pot or garden, soil, light, wind and whether neighbouring plants are affected.
- Onset and spread, soil moisture, recent drought or frost, timing and depth of pruning, and previous fertiliser and care products.
Individual yellow or brown needles do not establish a deficiency. Check roots and soil when larger sections fail; identify aphids or scale insects before treatment. The mixing partners below are not automatically authorised for every conifer species or problem.
Confirmed mixing partners
These four plant-care products are each compatible with our liquid conifer fertiliser.
-
Dr. Stähler
Schädlings-Frei-Organic – 100 ml
€16,95
Insect control: check the pest, plant species and authorised application site.
Mixable with GREEN24 liquid fertilisersView product & application -
Dr. Stähler
Trauermückenfrei Organic – 30 ml, neem concentrate against fungus gnat larvae
€9,99
For fungus gnat larvae: follow the authorised crop and watering application.
Mixable with GREEN24 liquid fertilisersView product & application -
Dr. Stähler
KIRON Milben-Ex – 30 ml
€12,95
Mite control: identify the infestation and follow the authorised application.
Mixable with GREEN24 liquid fertilisersView product & application -
Dr. Stähler
BOCCACIO Rosen Pilz-Frei – 24 ml
€13,95
Fungal control: check the disease, plant species and authorised growing situation.
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.
Quick answers before you buy (FAQ)
Is this fertiliser suitable for my plant?
For conifers with needles or scale leaves. Genus and cultivar determine the further growing plan; Ginkgo and indoor Norfolk Island pines are not included under a single shared care description.
How do I dilute the concentrate?
Dilution: 5 ml per 1 l of water.
Measure out the concentrate and mix it with the stated amount of water. Never apply undiluted.
How much solution does one pack make?
- 250 ml: 50 litres of diluted solution
- 500 ml – twin pack (2 × 250 ml): 100 litres of diluted solution
- 1 litre: 200 litres of diluted solution
Calculated at the stated standard dilution; the amount needed per application depends on the plant and growing conditions.
What should I check before use?
Do not apply in sunlight, below 5 °C or above 30 °C. Never apply the concentrate undiluted.
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 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.
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
Product GPSR safety information
The original leaflet explains safe preparation and use. For this conifer concentrate, use the product-specific dilution in the calculator. It does not establish an additional young-plant setting or more frequent applications.
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