Seaweed Fertilizer for Cannabis Plants? – A Powerful Superfood for Marijuana Plants

In fact, seaweed has been used for agricultural purposes for centuries now. Since ancient times, people have been using seaweed to fertilize the soil and even make infertile soil, fertile. Research into the use of seaweed (as well as kelp) has boomed in modern times, proving the efficacy and usefulness of this humble weed to strengthen the growth of many crops, including marijuana.