To date, over 11,000 species of seaweeds have been identified, yet only 32 are farmed at scale. These species are the focus of most research, particularly regarding their chemical composition and its commercial potential, as well as their environmental and economic viability, scalability, processing methods, and harvesting techniques. In agriculture, three seaweeds are most commonly used: Ascophyllum nodosum, Ecklonia maxima and Macrocystis pyrifera. StimBlue+ is derived from 100% cultivated Macrocystis pyrifera (Giant Kelp). Macrocystis is regarded as one of the most complete seaweed species worldwide, valued for its rich spectrum of bioactive elements, exceptional growth rate and capacity to absorb and retain CO₂. The polysaccharides, pigments, polyphenols and various nutrients in StimBlue+ act in synergy to stimulate the plant and up- or down-regulate key components of crops’ development, leading to tighter interactions between plant and soil components, supporting crops’ resistance to abiotic stress and increased yields. Kelp Blue cultivates Macrocystis pyrifera off the coast of Namibia. With less temperature variation and more space to grow the kelp forests, offshore farming leads to more stable quality, more stable supply and less heavy metals. Ascophyllum- or Ecklonia-based competitors often rely on wild harvesting, which is less cost-effective and can come with long-term regulatory issues. The kelp forest grows on underwater structures, where it can reach up to 15 meters. The canopy, or the first meter at the surface, is then trimmed every 3-4 months. When cultivated at scale, this means that the kelp forest can be harvested daily. For more information on how we cultivate Giant Kelp, please reference our page on Giant Kelp.
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