Mix with water
Phosphate, potassium oxide and the listed trace nutrients are declared water-soluble. Mix 5 ml of concentrate per 1.5 l of water.
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Help prepare your plants for the cold season
Kalium+ combines NPK 3.7+6+9 with a clear dilution. Explore how roots and leaves absorb nutrients and what matters through the season.
- Declared NPK
- 3.7+6+9
- Dilution
- 5 ml per 1.5 l of waterEvery 4–8 weeks during the growing season.
- Application
- Roots & foliage
- Application period
- August–DecemberOr during the growing season before periods of frost; as needed.
Does this application fit your plant?
Check nutrient needs
Seasonal concentrate for plants needing nutrition ahead of the cold season.
Follow the season
Label period August to December or during the growing season before frost; every 4–8 weeks as needed.
Plan winter care
Consider location, moisture and winter care for the particular plant species.
Application in one place
Measure. Mix. Feed.
Kalium+ dilution calculator
Enter the water volume. The calculator uses only 5 ml per 1.5 l of water.
Your water volume
1.5 l
Concentrate needed
5 ml
Mixing volume for the water entered; no plant-size estimate.
Enter a valid positive water volume.
Prepare a container
Have a clean watering can and water ready.
Choose the water volume
Choose the water volume actually needed; do not estimate plant size.
Add some water
Put some of the water in the watering can.
Shake the bottle
Shake before use and measure the calculated concentrate volume.
Add concentrate
Add 5 ml for each 1.5 l of water.
Top up and mix
Top up to the selected water volume and mix well. Apply only if nutrients are needed.
When to apply? The label states every 4–8 weeks from August to December, or during the growing season before frost. Apply only when nutrients are needed.
Watering · through roots
Pre-moisten the root zone and apply the mixture there. Feed only during the growing season and where nutrients are needed.
Spraying · through foliage
Spray the foliage with the diluted solution. Avoid open flower heads, direct sunlight and temperatures below 5 °C or above 30 °C.
Properties & pack size
Net mass: 297 g for 250 ml.
1-litre pack: net mass 1188 g according to its own XL label.
| Pack size | Price |
|---|---|
| 250 ml | €11,99 EUR |
| 500 ml – twin pack (2 × 250 ml) | €18,95 EUR |
| 1 litre XL | €29,95 EUR |
Nutrient composition NPK 3.7+6+9
Declared nutrient percentages. Product pH: 6.9.
- 3.7 % total nitrogen (N)
- 6 % water-soluble phosphate (P₂O₅)
- 9 % water-soluble potassium oxide (K₂O)
- 3 % urea nitrogen
- 0.008 % boron (B) · water-soluble
- 0.003 % copper (Cu) · water-soluble · EDTA chelate
- 0.015 % iron (Fe) · water-soluble · EDTA chelate
- 0.011 % manganese (Mn) · water-soluble · EDTA chelate
- 0.001 % molybdenum (Mo) · water-soluble
- 0.003 % zinc (Zn) · water-soluble · EDTA chelate
Mixing and application
Dilute the concentrate with water and mix thoroughly. No mixing approval with other products is documented here.
No product-specific approval for mixing with other agents is documented here. Apply other products separately according to their own labels.
Contact us →Understand the formula
Potassium-focused with declared soluble nutrients
NPK 3.7+6+9 and declared trace nutrients for needs-based root or foliar feeding.
Chelated trace nutrients
Copper, iron, manganese and zinc are listed as water-soluble EDTA chelates.
Composition and use
Alongside NPK, boron, copper, iron, manganese, molybdenum and zinc are declared. Full percentages appear in the product information.
Preferably use low-lime or rainwater at 15–25 °C. The stated product pH of 6.9 describes the concentrate, not a guaranteed pH of the diluted mix.
Use a clean watering can or sprayer. Shake the concentrate before use and measure carefully.
Autumn & Winter Fertiliser Kalium+ and everyday plant care
Autumn and winter care starts with the plant species and its location. A tree growing in garden soil and a container plant in winter accommodation need different attention.
Measure and add to water
Measure the concentrate for the required water volume and mix thoroughly. The illustrated steps guide preparation; this product’s dilution and timing appear in the information section.
Go to the dosage calculator →From solution into the plant
Roots, leaves and nutrients working together
Fine roots take up water and dissolved minerals; leaves use light and may also absorb diluted foliar feed. Conducting tissues connect plant parts. Actual needs depend on species, site and growth stage.
Roots · absorb and anchorFine roots access water and dissolved nutrients.
Root hairs enlarge the contact area with moist growing medium. Oxygen and suitable moisture are important for uptake. Pre-moisten the root zone before feeding as directed by the label.
Leaves · use lightLeaves make sugars using light and can absorb diluted foliar feed.
The leaf surface protects living tissue. Spray a foliar feed finely onto the foliage; avoid open flower heads. Uptake and nutrient needs vary with species and conditions.
Shoots · connect and transportConducting tissues connect roots and above-ground parts.
Water and mineral nutrients can move upwards through the xylem. Sugars made in leaves travel through other conducting tissue. Plant height does not determine the amount of fertiliser needed.
Nutrients · complementary rolesNPK 3.7+6+9 supplies nitrogen, phosphate and potassium-focused nutrition.
Nitrogen contributes to proteins and leaf pigment, phosphorus to energy transfer, and potassium to water balance. The original label describes the formula for cell strength and better resistance to the effects of frost.
Explore nutrient uptake
How nutrients enter a plant
Two routes into a plant: from the root zone and leaf surface to living cells.
Select a point in the picture or choose a stage.
Stage 01 / 04
Solution reaches the root zone
The diluted mixture reaches fine roots. Dissolved nutrients are present in the moist growing medium.
Good to knowAlways dilute concentrate and follow the label rate.
A closer look
The diluted mixture reaches fine roots. Dissolved nutrients are present in the moist growing medium.
Stage 02 / 04
Uptake at the root surface
Root hairs enlarge the contact area. Transport proteins in cell membranes help take up mineral ions.
Good to knowWater movement and nutrient uptake are different processes.
A closer look
Root hairs enlarge the contact area. Transport proteins in cell membranes help take up mineral ions.
Stage 03 / 04
Root cells control entry
Controlled steps in root tissue lie between the surface and conducting tissue. Nutrients do not simply wash into the plant.
Good to knowMore fertiliser does not automatically improve nutrition.
A closer look
Controlled steps in root tissue lie between the surface and conducting tissue. Nutrients do not simply wash into the plant.
Stage 04 / 04
Conducting tissue carries nutrients
Absorbed minerals can move upwards through xylem with the water stream to shoots and leaves.
Good to knowHealthy roots and suitable growing conditions support nutrition.
A closer look
Absorbed minerals can move upwards through xylem with the water stream to shoots and leaves.
Stage 01 / 04
Diluted solution wets foliage
In a foliar application, the diluted mix reaches the leaf surface. Avoid open flower heads.
Good to knowFoliar feeding belongs to the same feeding plan.
A closer look
In a foliar application, the diluted mix reaches the leaf surface. Avoid open flower heads.
Stage 02 / 04
Contact at the leaf surface
Depending on species and conditions, dissolved nutrients may pass the protective surface; small openings may also contribute.
Good to knowNot every leaf absorbs a nutrient solution equally well.
A closer look
Depending on species and conditions, dissolved nutrients may pass the protective surface; small openings may also contribute.
Stage 03 / 04
Uptake in leaf tissue
Living cells behind the surface can absorb nutrients that enter and use them for their functions.
Good to knowA droplet on a leaf is not yet an absorbed nutrient.
A closer look
Living cells behind the surface can absorb nutrients that enter and use them for their functions.
Stage 04 / 04
Use and possible redistribution
The plant may use nutrients in the leaf; some may move to other parts, depending on nutrient and plant condition.
Good to knowFoliar feeding does not instantly supply the whole plant.
A closer look
The plant may use nutrients in the leaf; some may move to other parts, depending on nutrient and plant condition.
Seasonal application
Distinguish late summer, frost periods and rest
Late summer and autumn
From August to December, follow plant needs and the label dilution. Consider nutrients already supplied and the actual growing season.
Before periods of frost
During the growing season, a needs-based application may form part of seasonal nutrition. Plan location, moisture and winter protection for the species.
Growth rest
Do not force additional feeding during rest. Adapt care to the condition of the individual plant.
The label period is an application window. Actual needs depend on species, site and previous feeding.
Application and calculator →Site and growing method
Consider containers, garden beds and winter location separately
The mixing dilution remains 5 ml per 1.5 l of water. How much solution and whether nutrients are needed depends on the individual plant.
Container plants
Consider limited root space, drainage and previous feeding. Do not infer water volume from pot size alone.
Plants in garden soil
Check soil moisture and nutrients already supplied. The label dilution sets mixture concentration, not the total amount needed.
Winter location
Assess cold sensitivity, moisture and suitable protection by species and location. Fertiliser complements care; it does not replace it.
Quick answers before you buy (FAQ)
How much concentrate do I use?
Mix 5 ml with 1.5 l of water. The calculator determines only the mixing volume for the water entered; it does not determine an individual nutrient requirement.
When can I apply it?
The label states every 4–8 weeks from August to December, or during the growing season before periods of frost. Feed only if the individual plant needs nutrients.
Does the fertiliser reliably protect against frost?
No. Fertiliser cannot guarantee frost tolerance or protection from frost damage. Location, moisture and winter protection remain separate care decisions.
How much solution does a bottle make?
At the label dilution, 250 ml of concentrate makes a calculated 75 l of solution, 2 × 250 ml makes 150 l and 1 l makes 300 l. These figures do not recommend how much solution to apply.
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.
- Apply only during the growing season.
Wash your face and hands thoroughly. Use diluted fertiliser promptly and keep it out of water bodies and wastewater.
Storage
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.