- You cannot place a new order from your country (United States).
search
Plagron Alga Grow 1l
Plagron Alga Grow 1L is a liquid organic base nutrient derived from seaweed extracts, engineered for the vegetative growth phase of soil-grown plants. The formulation delivers an NPK ratio of 4-2-4 through organically bound nitrogen for sustained release, water-soluble phosphorus pentoxide and potassium oxide, plus six trace elements including iron, manganese and boron. These bioactive compounds support chlorophyll synthesis, root zone development and enzymatic processes critical during vegetative growth. At a dilution rate of 1:250, one litre of concentrate yields up to 250 litres of nutrient solution. The 1L bottle suits growers managing a medium-sized garden seeking certified organic feeding throughout the growth cycle.
Plagron Alga Grow 1L – Organic Seaweed-Based Vegetative Nutrient
Plagron Alga Grow is a fully organic base nutrient formulated from marine algae extracts and sugar beet vinasse, purpose-built for the vegetative stage of plants cultivated in soil substrates. The liquid concentrate supplies a balanced profile of macronutrients and micronutrients that drive root architecture development, internode formation and foliar biomass production. Whether you are setting up your first indoor garden or running an established multi-plant operation, Alga Grow integrates seamlessly into a Plagron organic feeding programme with documented, repeatable outcomes.
Key specifications
Alga Grow derives its efficacy from the synergy between seaweed-sourced phytohormones, amino acids and a carefully balanced mineral profile. Every component is of biological origin, qualifying the product for use in organic cultivation systems.
- Total nitrogen content of 4.2% with 3.3% organically bound (Norg) ensuring slow-release uptake that minimises the risk of salt stress or nutrient burn at the root zone
- Water-soluble phosphorus pentoxide (P₂O₅) at 2.4% and potassium oxide (K₂O) at 4.3% to reinforce cell wall integrity and osmotic regulation during rapid vegetative expansion
- Full trace element suite: iron (Fe 0.020%), manganese (Mn 0.014%), boron (B 0.010%), zinc (Zn 0.006%), copper (Cu 0.002%) and molybdenum (Mo 0.0005%) supporting chlorophyll biosynthesis and metalloenzyme function
- Pre-adjusted pH of 5.5 and EC of 29 mS/cm, placing the nutrient solution within the optimal absorption window for soil-based root systems without additional pH buffering
Application and dosage
Apply Alga Grow throughout the entire vegetative phase, from the emergence of the first true leaf set until the transition to flowering. Add a maximum of 4 mL per litre of water (1:250 dilution) and use this solution at every irrigation event. Shake the bottle thoroughly before each use, as the natural organic constituents may settle during storage. Store between 0°C and 35°C, protected from frost and direct sunlight. Shelf life is 4 years from production date when unopened. For a complete organic programme, pair Alga Grow with complementary products from the Plagron Natural range.
Grower benefits
The seaweed-extract base provides several performance advantages that translate directly into measurable crop outcomes. Organically bound nitrogen undergoes gradual mineralisation in the rhizosphere, delivering a consistent feed rate that reduces the likelihood of over-fertilisation. Naturally occurring auxins and cytokinins from the algae promote compact growth habits with short internodes and sturdy stems. The trace element profile prevents the micronutrient deficiencies that commonly manifest as interveinal chlorosis or stunted apical growth. the Plant & Flower nutrients category has built a reputation for reliable, research-backed organic nutrient lines trusted by hobbyists and commercial growers alike.
Combinations and alternatives
For a full-cycle organic programme, pair Alga Grow during vegetative growth with Plagron Alga Bloom once plants initiate flowering. Add Power Roots during early vegetative growth for enhanced rhizosphere colonisation, or incorporate Pure Zym to boost enzymatic breakdown of organic matter in the substrate. Growers preferring mineral nutrition may consider Plagron Terra Grow as a soil-compatible alternative.
Conclusion
Plagron Alga Grow 1L is the dependable choice for any grower committed to organic nutrition during the vegetative phase. Order today from Plant & Flower for fast delivery across Belgium.
Technical specifications
| Primary elements (% w/w) | |
|---|---|
| Total nitrogen (Ntot) | 4.2% |
| Organic bound nitrogen (Norg) | 3.3% |
| Ammonium nitrogen (NH₄-N) | 0.9% |
| Phosphorus pentoxide (P₂O₅) | 2.4% (water-soluble) |
| Potassium oxide (K₂O) | 4.3% (water-soluble) |
| Trace elements (% w/w) | |
| Boron (B) | 0.010% |
| Copper (Cu) | 0.002% |
| Iron (Fe) | 0.020% |
| Manganese (Mn) | 0.014% |
| Molybdenum (Mo) | 0.0005% |
| Zinc (Zn) | 0.006% |
| Physical and chemical properties | |
| Acidity (pH) | 5.5 |
| Conductivity (EC) | 29 mS/cm |
| Density | 1.26 g/mL |
| Form | Liquid |
| Colour | Dark brown |
| Odour | Molasses-specific |
| Foaming | None |
What is the correct dosage of Plagron Alga Grow per litre of water?
The maximum recommended dosage is 4 mL per litre of water, corresponding to a 1:250 dilution ratio. Apply this solution at every watering throughout the vegetative phase. For seedlings or young plants, you may start at 2 mL per litre and gradually increase to full concentration as the plant matures.
Is Plagron Alga Grow suitable for certified organic cultivation?
Yes. Alga Grow is a fully organic fertiliser based on seaweed extracts and sugar beet vinasse. It contains exclusively natural ingredients and is formulated for use in organic growing systems. The organically bound nitrogen undergoes gradual mineralisation, aligning with natural nutrient cycling principles.
Can Alga Grow be combined with other Plagron products in the same nutrient solution?
Absolutely. Alga Grow is designed to work within the complete Plagron Natural feeding schedule. Combine it during the vegetative stage with Power Roots for rhizosphere stimulation and transition to Alga Bloom at the onset of flowering. Pure Zym can be added throughout the entire cycle to promote enzymatic activity in the root zone.
What is the shelf life of Plagron Alga Grow once opened?
Unopened, Alga Grow has a shelf life of 4 years from the production date. After opening, store the bottle in a cool, dark location between 0°C and 35°C, protected from frost and direct sunlight. Always shake thoroughly before use, as the natural organic constituents may sediment over time.
