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Plagron Alga Grow 5l
Plagron Alga Grow 5L is the bulk-volume packaging of this organic vegetative nutrient derived from marine algae extracts, designed for soil-based cultivation. The five-litre container holds the same concentrated organic formulation with an NPK profile of 4-2-4, supplemented by six essential trace elements. At full dosage, this volume yields up to 1,250 litres of nutrient solution, sufficient for dozens of plants across an entire growing season. Natural phytohormones and amino acids sourced from seaweed drive root proliferation and chlorophyll biosynthesis. This format delivers the lowest cost per litre and is the preferred choice for growers operating larger canopies or running consecutive cultivation cycles.
Plagron Alga Grow 5L – Bulk Organic Seaweed Nutrient for Vegetative Growth
The Plagron Alga Grow 5L is the high-volume option for growers who require substantial quantities of organic vegetative nutrition. This container holds the same proven formulation based on marine algae extracts and sugar beet vinasse as every other format in the range, scaled for operations with larger plant counts or extended growing seasons. From fully stocked grow tents to outdoor plots with multiple containers, 5 litres of concentrate ensures uninterrupted organic feeding. Browse the complete Plagron product range to build a tailored organic nutrient programme.
Key specifications
The 5L container delivers the identical concentration and elemental composition found in smaller formats. Alga Grow's performance stems from the interplay between organic macronutrients and a broad-spectrum trace element package.
- 4.2% total nitrogen with 3.3% organically bound, providing a sustained-release nitrogen source that mitigates the risk of root zone salt accumulation
- Water-soluble phosphorus (P₂O₅ 2.4%) and potassium (K₂O 4.3%) supporting root architecture and cellular turgor pressure during rapid vegetative expansion
- Complete trace element profile: 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%)
- Liquid formulation at pH 5.5 and density 1.26 g/mL, ensuring immediate bioavailability at the root interface
Application and dosage
Dosage protocol is consistent across all formats: add a maximum of 4 mL per litre of water (1:250) at every irrigation event during the vegetative phase. Five litres of concentrate produces up to 1,250 litres of working solution, sufficient to supply dozens of plants through a complete vegetative cycle. Agitate the container before each use and store between 0°C and 35°C, away from frost and direct solar radiation. Integrate Alga Grow with products from the Plagron Natural line for a comprehensive organic programme.
Grower benefits
The 5L format delivers a significantly lower cost per litre compared to smaller bottles, making it the economically rational choice for growers running multiple cycles annually or maintaining high plant counts. The organic seaweed-based formulation provides the same agronomic benefits as smaller packagings: sustained nitrogen release, naturally occurring phytohormones that promote compact morphology with reduced stretch, and buffering against excessive salinity in the root zone. organic growing mediums has established a long-standing reputation for consistent, research-informed organic nutrient lines adopted by both amateur and professional cultivators.
Combinations and alternatives
Transition from Alga Grow to Plagron Alga Bloom 5L at the onset of flowering for a seamless organic feed schedule. Supplement with Power Roots during early vegetative growth for enhanced root mass, or add Pure Zym to accelerate organic matter decomposition in the substrate. Growers who prefer a mineral-based approach may consider Plagron Terra Grow 5L as a soil-compatible alternative.
Conclusion
Plagron Alga Grow 5L is the smart investment for the organic grower who values both quality and economy of scale. Order now 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 |
How many litres of nutrient solution does Plagron Alga Grow 5L produce?
At the maximum dosage of 4 mL per litre of water, 5 litres of concentrate yields up to 1,250 litres of working nutrient solution. This volume is sufficient to feed dozens of plants through an entire vegetative season. At half-strength (2 mL/L), the yield extends to 2,500 litres.
Why choose the 5L format over smaller bottles?
The 5L container offers the lowest cost per litre across all available formats, significantly below the per-litre price of the 0.25L, 0.5L and 1L bottles. For growers managing multiple plants or running successive cultivation cycles, this represents the most cost-efficient option without any compromise in formulation quality.
What are the optimal storage conditions for an opened 5L container?
Store the container in a cool location between 0°C and 35°C, away from direct sunlight and frost. Ensure the cap is sealed tightly after each use. Unopened, the product remains viable for 4 years from the production date. Always shake thoroughly before dispensing, as natural organic constituents will settle over time.
Is Alga Grow 5L compatible with hydroponic systems or soil only?
Alga Grow is formulated exclusively for soil-based cultivation. Its organic constituents are optimised to interact with the soil microbiome and provide sustained nutrient release through biological mineralisation. For hydroponic systems, Plagron offers the Hydro A&B line, specifically engineered for recirculating and drain-to-waste water culture setups.
