Differences in nutrient composition of sea fennel (Crithmum maritimum) grown in different habitats and optimally controlled growing conditions

•C. maritimum is an edible halophyte with large potential in human nutrition field.•Desired nutritional profile is maintained regardless of environmental conditions.•Plants under optimal growing conditions increased total essential amino acids•PUFAs and sodium accumulation changes under suboptimal growing conditions.•Phenolics compounds decreased under optimal greenhouse conditions