Soil Amendments: Kelp Meal
Updated: May 8, 2018
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Kelp is a type of brown algae seaweed that can be used as a natural, organic soil amendment. It can be incorporated into potting soils, seed and transplant beds, as well as composting materials. It is full of minerals, vitamins, and amino acids, and its considered to be one of the most complete source of naturally occurring micronutrients on the planet. It adds organic matter to the soil, helps retain moisture to encourage healthy root growth, has natural growth hormones, reduces plant stress from drought, increase frost tolerance, and can help improve soil deficiencies. When looking for this amendment, look for organic meals made with Ascophyllum nodosum - it's from the North Atlantic Ocean, considered to be abundant, renewable, and the kelp variety with the most micronutrients.
This article was first published in our March 2018 Soil Trotters newsletter.