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The growth fertilizer made from seaweed, Alga Grow, has been developed by Plagron specifically for cannabis growing in soil-based substrate. It promotes balanced, vigorous growth and sets your plants up for spectacular flowering.


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Type and Use

Alga Grow is a base fertilizer for the growth phase of cannabis, formulated by Plagron using algae and other organic components. It is approved for use in organic growing since it complies with the EU's EC regulations.

Plant Benefits

The algae used in the fertilizer formulation contain natural hormones such as cytokinin, which multiply all cellular metabolism and help accelerate growth rate. It stimulates chlorophyll production.


NPK 4-2-4

  • Organic Nitrogen 4.2%
  • Phosphorus 2%
  • Potassium 4.3%
  • Algae Extract
  • Beet Molasses

Instructions and Dosage

Shake the bottle well and add a maximum of 4 milliliters per liter of Alga Grow at each watering during the growth phase. Use within 24 hours of its preparation

Opinion of La Huerta

You'll get the best results when combined with the rest of the products from the 100% Natural range. This fertilizer is included in the Top Grow Box Bio kit by Plagron.

Data sheet

Type of composition
Bio or organic
Growth stage
Type of fertilizer
Fertilizer for vegetative stage
Type of grow
Soil grow

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