Liquid seaweed fertilizer is a "tea" made by infusing seaweed in water to extract its nutrients from the solids. Seaweed extract contains modest amounts of nitrogen, phosphorous and potassium, but as many as 60 trace minerals often lacking in garden soil and potting soil.
About this Author
Melissa Jordan-Reilly has been a writer for 20 years, both as a newspaper reporter and as an editor of nonprofit newsletters. Among the publications in which she has published are, "The Winsted Journal," "Taconic" and "Compass Magazine." A graduate of the University of Connecticut, Jordan-Reilly also pursues sustainable agriculture techniques and tends a market garden at her Northwestern Connecticut home.