Water-soluble declaration
The composition lists nutrients declared as water-soluble on this product's own label. Mix the measured concentrate thoroughly in water.
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- NPK and trace nutrients for spruce (Picea)
- Product-specific dilution calculator
- Root and foliar use according to the label
Individual needles, hanging cones
Spruces give gardens structure throughout the year. This concentrate supplies Picea species with major and trace nutrients. Mix 5 ml per litre of water every 2–3 weeks during growth as needed.
- Declared NPK
- 5.7 + 3.8 + 5.7With declared trace nutrients.
- Dilution
- 5 ml per 1 litre of waterEvery 2–3 weeks during active growth.
- Application
- Roots & foliageDilute before application.
- Application period
- During active growth when neededAccount for actual growth.
Product information
Application & dilutionMix and apply according to this product's own directions.
Application in one place
Measure. Mix. Apply.
Dilution calculator · spruces
5 ml per 1 litre of water
Your water amountRough watering-volume guide
1 l
Matching concentrate amount
5 ml
Measure the calculated concentrate with a suitable measuring aid. Do not estimate small amounts by eye.
Enter a water amount from 0.1 to 1,000 litres.
Use the water volume actually needed. Plant height alone does not provide a reliable watering volume.
How the guide is calculated
Concentrate (ml) = water (l) × 5 ÷ 1.
Prepare a clean container
Use a suitable clean watering can or sprayer and follow this product's water directions.
Choose the water volume
Choose the amount actually needed. Check root-ball moisture and drainage before watering.
Add water first
Start with part of the selected water volume.
Shake and measure
Shake the bottle well. Measure the concentrate calculated for the selected water volume accurately.
Add the concentrate
Add the measured amount to the water; never apply concentrate directly to the plant.
Top up and mix
Top up to the chosen water volume and mix thoroughly. Water or spray according to this product's own directions.
When to feed? 5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed Shake before use, measure and mix into the water. Account for existing nutrients and plant needs.
Watering · through the roots
For rooted plants, moisten the root ball, apply diluted feed and allow surplus water to drain.
Spraying · onto the leaves
Distribute diluted solution evenly over upper and lower leaf surfaces. Avoid open flowers.
Characteristics & pack sizesThe concentrate and pack sizes at a glance.
Net mass: 285 g per 250 ml. The twin pack contains two 250 ml bottles.
| 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) |
A practical feeding routine
5 ml per 1 litre of water
Spruces give gardens structure throughout the year. This concentrate supplies Picea species with major and trace nutrients. Mix 5 ml per litre of water every 2–3 weeks during growth as needed.
During active growth when needed
5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed Shake before use, measure and mix into the water. Account for existing nutrients and plant needs.
Consider the growing method
Check root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
Understand this formulation
Add nutrients at the right dilution
5.7 + 3.8 + 5.7 Declared mass percentages. Product pH: 6.9. 5.7 % total nitrogen (N) 5.4 % urea nitrogen 0.3 % nitrate nitrogen 3.8 % water-soluble phosphate (P₂O₅) 5.7 % water-soluble potassium oxide (K₂O) 0.0065 % boron (B) 0.0026 % copper (Cu), EDTA chelate 0.013 % iron (Fe), EDTA chelate 0.0078 % manganese (Mn), EDTA chelate 0.0007 % molybdenum (Mo) 0.0026 % zinc (Zn), EDTA chelate
Declared trace nutrients
See this product's declaration for amounts and any chelate bindings. This does not justify an additional unmeasured trace-nutrient feed.
Account for water and position
Follow this product's water and application directions. Concentrate pH does not establish a guaranteed pH for soil or diluted solution.
Measure accurately and store correctly
Retain the original container and labelling and follow this product's full directions.
Nutrients in context
Nutrition, light, water and root condition work together. Extra fertiliser cannot correct insufficient light or damaged roots.
For rooted plants, moisten the root ball, apply diluted feed and allow surplus water to drain.
Use clean suitable containers and an appropriate measuring aid.
Products
The recommendations cover products for different care tasks. Combining them in the same solution requires the instructions for both products to allow that combination. Otherwise, apply the products separately.
Do not mix undiluted concentrates together. Follow the confirmed mixing conditions and application routes of each product.
Nutrient compositionThe complete product-specific declaration.
Declared mass percentages. Product pH: 6.9.
- 5.7 % total nitrogen (N)
- 5.4 % urea nitrogen
- 0.3 % nitrate nitrogen
- 3.8 % water-soluble phosphate (P₂O₅)
- 5.7 % water-soluble potassium oxide (K₂O)
- 0.0065 % boron (B)
- 0.0026 % copper (Cu), EDTA chelate
- 0.013 % iron (Fe), EDTA chelate
- 0.0078 % manganese (Mn), EDTA chelate
- 0.0007 % molybdenum (Mo)
- 0.0026 % zinc (Zn), EDTA chelate
GREEN24 · Plant knowledge
Individual needles, hanging cones
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Foliage and habit
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Cones and seeds
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Growth and care
Check root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
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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.
Roots, foliage and growth
RootsFine roots contact soil water. Their cell membranes regulate uptake of dissolved nutrients.
Check root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
NeedlesThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Shoots and habitYoung spruces often have a conical crown, with variation among species and cultivars.
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Cones and seedsThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Understand nutrient uptake
Choose a route and station.
Station 01 / 04
The diluted solution
For rooted plants, moisten the root ball, apply diluted feed and allow surplus water to drain.
For application5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed Shake before use, measure and mix into the water. Account for existing nutrients and plant needs.
Learn more
For rooted plants, moisten the root ball, apply diluted feed and allow surplus water to drain.
Station 02 / 04
Contact with fine roots
Fine roots contact soil water. Their cell membranes regulate uptake of dissolved nutrients.
For applicationThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Learn more
Fine roots contact soil water. Their cell membranes regulate uptake of dissolved nutrients.
Station 03 / 04
Regulated uptake
Membranes and transport proteins regulate nutrient entry into living root cells. Extra fertiliser does not repair damaged or oxygen-starved roots.
For applicationThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Learn more
Membranes and transport proteins regulate nutrient entry into living root cells. Extra fertiliser does not repair damaged or oxygen-starved roots.
Station 04 / 04
Transport through the plant
Water and absorbed nutrients move towards growing organs. The drawing explains a functional pathway, not measured performance of this fertiliser.
For applicationCheck root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
Learn more
Water and absorbed nutrients move towards growing organs. The drawing explains a functional pathway, not measured performance of this fertiliser.
Station 01 / 04
Wet foliage as directed
Distribute diluted solution evenly over upper and lower leaf surfaces. Avoid open flowers.
For application5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed Shake before use, measure and mix into the water. Account for existing nutrients and plant needs.
Learn more
Distribute diluted solution evenly over upper and lower leaf surfaces. Avoid open flowers.
Station 02 / 04
The relevant leaf surface
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first. Leaf surfaces affect wetting; do not assume one uptake rate for every species.
For applicationThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Learn more
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first. Leaf surfaces affect wetting; do not assume one uptake rate for every species.
Station 03 / 04
Entry into leaf tissue
The outer leaf barrier and other pathways influence entry of dissolved substances. The cell view is schematic; droplets do not automatically pass freely through every stomatal opening.
For applicationThe drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
Learn more
The outer leaf barrier and other pathways influence entry of dissolved substances. The cell view is schematic; droplets do not automatically pass freely through every stomatal opening.
Station 04 / 04
Part of the total nutrient supply
Absorbed substances are used or transported within the plant. Account for foliar and root applications together rather than adding two full feeding programmes.
For applicationCheck root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
Learn more
Absorbed substances are used or transported within the plant. Account for foliar and root applications together rather than adding two full feeding programmes.
Observe development
Distinguish growth from rest
Young plants and establishment
Plant or repot according to root development and species during suitable frost-free conditions. Retain the root collar at its previous level and account for starter nutrients.
Active growth
5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed Shake before use, measure and mix into the water. Account for existing nutrients and plant needs.
Rest period
Hardy species remain outside; protect container root balls separately from severe freezing and check moisture in dry frost-free weather.
The drawing illustrates typical spruce features: individually attached needles and hanging cones. Investigate the cause of brown needles first.
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.
Growing conditions
In containers
Check root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
In the garden
Check spruce species, mature size and soil moisture together. Maintain drainage and avoid drought stress or persistently wet roots.
Winter and rest
Hardy species remain outside; protect container root balls separately from severe freezing and check moisture in dry frost-free weather.
Planting and repotting
Plant or repot according to root development and species during suitable frost-free conditions. Retain the root collar at its previous level and account for starter nutrients.
Observe and identify the cause
Needle renewal or damage?
Older inner needles can be naturally replaced. Extensive browning, wilting tips or rapid loss require checking water, roots, weather and pests.
Inspect shoots and needles
Look for aphids, webbing and chewing damage. Identify the cause on the actual tree species; brown needles alone do not determine a treatment.
Assess the root zone
Check root-ball moisture in new plantings and containers. Water thoroughly when needed and allow excess to drain.
Discuss the care problem
These details help assess the problem:
- Record plant species, position and recent changes.
- Describe root-ball moisture, drainage and previous feeds.
- Provide an overview and clear photos of affected organs.
This guidance supports investigation; it does not replace a reliable diagnosis or authorised plant-protection directions.
PLANTS A–Z
Conifers in the plant guide
A broader guide to conifers; follow the particular needs of the actual Pinus, Picea or Abies species.
View the plant guide
PRACTICAL ADVICE
What limits plant growth
Consider light, water, roots and nutrients together.
Read the guide
Quality products
Horticultural expertise
Our own production
Made in GermanyGREEN24's own products
Quick answers before you buy (FAQ)
Which plants is this concentrate intended for?
Spruces give gardens structure throughout the year. This concentrate supplies Picea species with major and trace nutrients. Mix 5 ml per litre of water every 2–3 weeks during growth as needed.
How is it diluted and applied?
5 ml per 1 litre of water Every 2–3 weeks during active growth. During active growth when needed
How much prepared solution does each pack make?
250 ml → 50 l; 500 ml – twin pack (2 × 250 ml) → 100 l. Calculated yield at this product's standard dilution; plant needs determine the amount applied.
What application limits apply?
Do not use undiluted. Shake well before use. Keep out of reach of children and animals. Prefer low-lime water or rainwater at 15–25 °C. Do not fertilise in direct sunlight, below 5 °C or above 30 °C. Apply to the pre-moistened root zone or spray foliage. Do not spray open flowers.
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.
- Prefer low-lime water or rainwater at 15–25 °C.
- Do not fertilise in direct sunlight, below 5 °C or above 30 °C.
- Apply to the pre-moistened root zone or spray 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 supplements this product’s own instructions. Use dilution stages only within their stated scope; standard dilution remains the basis of yield.
Storage
Storage and product quality
Dry and dark Store 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 and dark Store above 8 °C and at no more than 38 °C. Keep out of reach of children and animals.
Keep fertiliser residues and wash water out of waterways and sewage. Follow packaging disposal directions.
Prepare only the amount needed and never apply undiluted.
Manufacturer / company placing the product on the market
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