Sweet flag, scientifically known as Acorus calamus, is a versatile perennial herb that has been cultivated for centuries for its various uses in traditional medicine, culinary applications, and landscaping. With its distinctive aromatic rhizomes and slender, sword-like leaves, sweet flag adds aesthetic appeal to gardens while offering a range of practical benefits. In this comprehensive guide, we will explore the cultivation of sweet flag, covering everything from soil requirements to propagation and maintenance.