Description

Mairol Growth Crystals – universal NPK 14-12-14 + MgO crystal fertilizer

Growth Crystals is a professional mineral fertilizer in the form of easily soluble crystals, developed by the Mairol brand for the comprehensive care of indoor, balcony and garden plants. The concentrated formula provides plants with a precisely selected range of nutrients essential during intensive growth, supporting the development of green mass, the root system and overall vitality.

Thanks to its crystalline form, the fertilizer dissolves completely in water without leaving any residue, enabling highly accurate and safe dosing. Its high efficiency means that 1 kg of the product is enough to prepare as much as 1000 liters of fertilizer solution, making it an economical solution for both hobbyists and more demanding users.

The balanced NPK 14-12-14 + 2% MgO formula, enriched with chelated micronutrients and B vitamins, ensures rapid and effective nutrient uptake. The fertilizer is ideal as a starter treatment after transplanting and as regular support for plants during the growing season.

Composition and significance of the ingredients

  • Nitrogen (N) 14% [11% NH₄⁺, 3% NO₃⁻] – intensive shoot and leaf growth,
  • Phosphorus (P₂O₅) 12% – root system development and support for flowering,
  • Potassium (K₂O) 14% – plant resistance and regulation of water balance,
  • Magnesium (MgO) 2% – chlorophyll synthesis and prevention of chlorosis,
  • Chelated micronutrients (EDTA): Fe, B, Cu, Mn, Mo, Zn – proper metabolism and intense leaf coloration,
  • Vitamins B1, B2, B6, B7 (biotin) – support for plant growth and resistance.

Application

The fertilizer is intended for:

  • green and flowering houseplants,
  • balcony and terrace plants,
  • vegetables, fruit plants, perennials and ornamental shrubs,
  • annual and perennial plants.

Recommended for use from March to October, especially during periods of intensive growth and after transplanting.

Directions for use

  • Dissolve 1 g of fertilizer in 1 liter of water (measuring scoop included),
  • apply every 7 days to slightly moist soil,
  • apply the first fertilization approximately 2 weeks after transplanting,
  • foliar application is also possible after appropriate dilution.

Efficiency and product information

  • Efficiency: up to 1000 liters of fertilizer solution
  • Form: crystalline, fully soluble fertilizer
  • Intended use: universal – indoor, balcony and garden plants

Mairol Growth Crystals is an efficient, precise and versatile premium fertilizer that provides plants with vigorous growth, healthy leaves and long-lasting condition throughout the growing season.

Product form

Wachstumskristalle 1KG Mairol – universal soluble fertilizer

85,00 zł

    Buy more, pay less
    QtyDiscountPrice / pc
    1 – 85,00 zł
    6 5% 80,75 zł
    12 10% 76,50 zł
    • Fast shipping within 24 hours
    • Premium quality

    Description

    Mairol Growth Crystals – universal NPK 14-12-14 + MgO crystal fertilizer

    Growth Crystals is a professional mineral fertilizer in the form of easily soluble crystals, developed by the Mairol brand for the comprehensive care of indoor, balcony and garden plants. The concentrated formula provides plants with a precisely selected range of nutrients essential during intensive growth, supporting the development of green mass, the root system and overall vitality.

    Thanks to its crystalline form, the fertilizer dissolves completely in water without leaving any residue, enabling highly accurate and safe dosing. Its high efficiency means that 1 kg of the product is enough to prepare as much as 1000 liters of fertilizer solution, making it an economical solution for both hobbyists and more demanding users.

    The balanced NPK 14-12-14 + 2% MgO formula, enriched with chelated micronutrients and B vitamins, ensures rapid and effective nutrient uptake. The fertilizer is ideal as a starter treatment after transplanting and as regular support for plants during the growing season.

    Composition and significance of the ingredients

    • Nitrogen (N) 14% [11% NH₄⁺, 3% NO₃⁻] – intensive shoot and leaf growth,
    • Phosphorus (P₂O₅) 12% – root system development and support for flowering,
    • Potassium (K₂O) 14% – plant resistance and regulation of water balance,
    • Magnesium (MgO) 2% – chlorophyll synthesis and prevention of chlorosis,
    • Chelated micronutrients (EDTA): Fe, B, Cu, Mn, Mo, Zn – proper metabolism and intense leaf coloration,
    • Vitamins B1, B2, B6, B7 (biotin) – support for plant growth and resistance.

    Application

    The fertilizer is intended for:

    • green and flowering houseplants,
    • balcony and terrace plants,
    • vegetables, fruit plants, perennials and ornamental shrubs,
    • annual and perennial plants.

    Recommended for use from March to October, especially during periods of intensive growth and after transplanting.

    Directions for use

    • Dissolve 1 g of fertilizer in 1 liter of water (measuring scoop included),
    • apply every 7 days to slightly moist soil,
    • apply the first fertilization approximately 2 weeks after transplanting,
    • foliar application is also possible after appropriate dilution.

    Efficiency and product information

    • Efficiency: up to 1000 liters of fertilizer solution
    • Form: crystalline, fully soluble fertilizer
    • Intended use: universal – indoor, balcony and garden plants

    Mairol Growth Crystals is an efficient, precise and versatile premium fertilizer that provides plants with vigorous growth, healthy leaves and long-lasting condition throughout the growing season.

    Composition
    • Nitrogen (N) 14% [11% NH₄⁺, 3% NO₃⁻] – intensive shoot and leaf growth,
    • Phosphorus (P₂O₅) 12% – root system development and support for flowering,
    • Potassium (K₂O) 14% – plant resistance and regulation of water balance,
    • Magnesium (MgO) 2% – chlorophyll synthesis and prevention of chlorosis,
    • Chelated micronutrients (EDTA): Fe, B, Cu, Mn, Mo, Zn – proper metabolism and intense leaf coloration,
    • Vitamins B1, B2, B6, B7 (biotin) – support for plant growth and resistance.
    Dosage and use
    • Dissolve 1 g of fertilizer in 1 liter of water (measuring scoop included),
    • apply every 7 days to slightly moist soil,
    • apply the first fertilization approximately 2 weeks after transplanting,
    • foliar application is also possible after appropriate dilution.

    Frequently Asked Questions - FAQ

    Do you ship orders to the entire European Union?

    Yes, we ship to all countries in the European Union. The cost and delivery time depend on the destination country, the chosen shipping method, and current logistical conditions.

    Can I pay cash on delivery (COD)?

    Cash on delivery is available in selected European Union countries. Available payment methods are always displayed during the checkout process, depending on the delivery country.

    Where can I find the dosage and instructions for use?

    The dosage and instructions for use are provided in the product description - you can find them quickly in the “Dosage and use” tab below the purchase button. Always follow the manufacturer’s instructions on the label as well.

    Can I order fertilizers and accessories together with seeds?

    Yes - you can add fertilizers, substrates, and accessories to the same cart as seeds and order them all in a single order.

    Who is the product manufacturer?

    The manufacturer is listed in the description of each product.

    How quickly are orders shipped?

    We ship most orders on the same or next business day. During busy periods, such as peak season or holidays, processing time may extend up to 72 hours.

    Where can I find answers to more questions?

    You can find an extensive database of answers on the full FAQ page, where we cover in detail topics such as orders, shipping, payments, cultivation, and products.

    👉 [Go to the full FAQ]

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