Apart from hydrogen, oxygen and carbon, anthurium flowers just like practically all other types of plants demand 13 elements to live. Most of the elements are only required in trace amounts, but you will find 6 elements that are necessary in larger quantities and hence are deemed macro nutrients. They’re: potassium, nitrogen and phosphorous; and calcium, magnesium and sulfur. In the following paragraphs, I’m going to focus on the most important nutrients: potassium, nitrogen, and phosphorous.