Description

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

Growth Crystals is a professional mineral fertilizer in the form of easily soluble crystals, developed by the brand :contentReference[oaicite:0]{index=0} for comprehensive care of houseplants, balcony plants, and garden plants. The concentrated formula provides plants with a precisely balanced set of nutrients essential during periods of intensive growth, supporting the development of green mass, root system, and overall vitality.

Thanks to its crystalline form, the fertilizer dissolves completely in water without leaving residues, allowing very precise and safe dosing. Its high efficiency means that 1 kg of the product is enough to prepare up to 1000 liters of fertilizer solution, making it an economical solution for both hobbyists and more demanding users.

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

Composition and significance of ingredients

  • Nitrogen (N) 14% [11% NH₄⁺, 3% NO₃⁻] – intensive shoot and leaf growth,
  • Phosphorus (P₂O₅) 12% – root system development and flowering support,
  • Potassium (K₂O) 14% – plant resistance and water regulation,
  • Magnesium (MgO) 2% – chlorophyll synthesis, 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.

Usage

The fertilizer is intended for:

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

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

Application method

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

Efficiency and product information

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

Mairol Growth Crystals is an efficient, precise, and versatile premium-class fertilizer that ensures intensive growth, healthy leaves, and long-lasting condition throughout the growing season.

Product form

Wachstumskristalle 1KG Mairol – universal soluble fertilizer

85,00 zł

    • Fast shipping within 24 hours
    • Premium quality

    Description

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

    Growth Crystals is a professional mineral fertilizer in the form of easily soluble crystals, developed by the brand :contentReference[oaicite:0]{index=0} for comprehensive care of houseplants, balcony plants, and garden plants. The concentrated formula provides plants with a precisely balanced set of nutrients essential during periods of intensive growth, supporting the development of green mass, root system, and overall vitality.

    Thanks to its crystalline form, the fertilizer dissolves completely in water without leaving residues, allowing very precise and safe dosing. Its high efficiency means that 1 kg of the product is enough to prepare up to 1000 liters of fertilizer solution, making it an economical solution for both hobbyists and more demanding users.

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

    Composition and significance of ingredients

    • Nitrogen (N) 14% [11% NH₄⁺, 3% NO₃⁻] – intensive shoot and leaf growth,
    • Phosphorus (P₂O₅) 12% – root system development and flowering support,
    • Potassium (K₂O) 14% – plant resistance and water regulation,
    • Magnesium (MgO) 2% – chlorophyll synthesis, 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.

    Usage

    The fertilizer is intended for:

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

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

    Application method

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

    Efficiency and product information

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

    Mairol Growth Crystals is an efficient, precise, and versatile premium-class fertilizer that ensures intensive growth, healthy leaves, and long-lasting condition throughout the growing season.

    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 sowing and cultivation instructions?

    Instructions and guides on sowing and plant care can be found in the product descriptions and on our blog, where we regularly publish educational materials. Additionally, we include a printed instruction manual with every order.

    Are the seeds sold legal and safe?

    Yes, all products offered by Mr.seed are legal and marketed in accordance with applicable regulations and the guidelines of phytosanitary institutions.

    Where do the seeds come from?

    Our seeds come from trusted producers and direct sources around the world. We collaborate with plantations, botanical gardens, and experienced seed collectors.

    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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