If you didn’t already know, seaweed is one of the best plant fertilisers out there. Some coastal growers have been known to harvest seaweed and use it in their gardens to enhance their crops. That’s if they are fortunate enough to be allowed to harvest seaweed from the often, privately-owned beaches.
So why is seaweed popular for gardening? Despite being different from the typical composition of most fertilisers. Seaweed’s unique nutritional value works well, if not better, to encourage essential biological plant processes.