GROTEK Fertilizers: Buying Guide

The main driving force behind the Grotek brand is the line of organo-mineral fertilizers Solo-Tek, which combine efficiency and simplicity. Grotek fertilizers are suitable for a wide range of cultivation methods, including soil growing both indoor and outdoor, hydroponics, soilless cultivation in coco and other inert substrates. There is truly something for everyone and we will show you how!

Grotek is an established brand that has been on the market for more than 20 years. Their fertilizers are used by hobby home growers as well as professional growers worldwide. Grotek were among the first to combine mineral fertilizers and organic extracts in their formulations, allowing growers to take advantage of the best of both worlds and rely on the efficiency of mineral salts while benefiting from the positive effects of organic substances on plant nutrition.

Grotek basic fertilizer line

Plants go through different growth stages during their life and as they change, so do their nutritional needs, especially the ratio of primary nutrients NPK. While plants in the vegetative phase require increased nitrogen (N), flowering plants make more use of phosphorus (P) and potassium (K). These essential nutrients are contained in the basic fertilizers that no gardener can do without.

Grotek offers a convenient solution in the form of two products Solo-Tek Grow and Solo-Tek Bloom. These are single-component liquid fertilizers for the vegetative and flowering phases, which can be used for:

• growing in soil, both indoor and outdoor
• hydroponics
• soilless cultivation (coco substrate, rockwool)

Single-component fertilizers are often more effective than three-part formulas. Whenever cation exchange occurs in the nutrient solution, three-part mixes can slow the solution's effectiveness. Solo-Tek fertilizers are produced using a patented 7-day process and, thanks to humus suspension technology, are a concentrated blend that contains no water.

• Solo-Tek Grow is a basic liquid fertilizer for vegetative growth that provides plants with everything they need during the vegetative phase of their life cycle. The formula contains the correct ratio of macro- and micronutrients necessary for healthy leaf, stem and root development.
• Vitamax Pro is a liquid nutritional supplement that can be used throughout the plant's life cycle. It is an organic version of commonly used growth-support products with a high content of organic matter for use in soil and hydroponic substrates. It increases plant resistance to abiotic stress and is recommended for intensive cultivation.
• Vitamax Plus is a more concentrated version of Vitamax Pro that is also suitable for hydroponic use. Vitamax Plus contains a smaller proportion of organic matter and, thanks to low molecular weight humates and amino chelate components, provides plants with nutrients necessary for rapid growth. Suitable for the entire cultivation period.
• Monster Grow Pro is a water-soluble powdered fertilizer intended as a growth-phase nutritional supplement. This product contains highly soluble organic materials, a plant amino acid hydrolysate for fast nitrogen supply and a soluble grass extract to support root development. Monster Grow Pro is recommended during the vegetative phase for soil, soilless substrates and hydroponics.
• Bud Fuel Pro is a liquid nutritional supplement for the pre-flower phase when growing in soil and soilless substrates. This product supplies plants with key nutrients at the start of the flowering period when the first buds are formed. It contains bioactive components, minerals and a patented grass extract. Bud Fuel Pro accelerates flower onset and increases crop yield.

For the flowering phase we recommend

• Monster Bloom is a highly concentrated fertilizer to support flowering with a high content of readily available phosphorus and potassium for use in soil, soilless substrates and hydroponics. Many growers swear by Monster Bloom and it is one of the most effective bloom boosters on the market. When applied during flowering and ripening it significantly increases yield and harvest quality.
• Blossom Blaster is a powdered flowering accelerator for growing in soil, soilless substrates and hydroponics. It contains phosphorus and potassium, elements that help plants in the early weeks of flowering and increase crop yield. Thanks to a highly concentrated formula, it only needs to be used at 0.1 grams per liter.
• Blossom Blaster Pro is a liquid flowering accelerator for use in soil, soilless substrates and hydroponics. Due to its lower concentration compared to the powdered form, this product can also be applied as a foliar spray.
• Heavy Bud Pro is a liquid fertilizer to support ripening for use in soil, soilless substrates and hydroponics. Thanks to its unique composition with a large amount of free carbohydrates, plants get rapid access to a huge supply of nutrients, which when applied in the final weeks before harvest increases both yield and crop quality.

Final Flush from Grotek

Final Flush is intended to remove excess salts from the growing substrate, ensuring a cleaner harvest. By removing excess nutrients at the end of the growing period we force plants to convert accumulated salts into secondary metabolites, improving the taste and aroma of the harvested product. Final Flush is available in 6 variants:

• Final Flush Regular (unscented, will not change the original terpene profile)
• Final Flush Grapefruit
• Final Flush Green Apple
• Final Flush Pina Colada
• Final Flush Blueberry
• Final Flush Strawberry

Interested in the organic line Grotek Green Line? Read our detailed article here.

Useful links

GROTEK Guide

Dosage tables for GROTEK fertilizers

Manufacturer's website