QuestionsHow to growVegetable GrowingSite and SoilSeaweed for fretiliser? 0 Vote Up Vote Down gerald grace asked 15 years ago Is seaweed a good vegetable fertiliser ? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago It is more a tonic than a fertlizer. See this: https://www.garden.ie/askgerry_answers.aspx?article=346&id=924