Irises grow from a rhizome, a form of modified stem that creeps along the ground just beneath the surface. Irises have a fat, fleshy rhizome for storing water and starch, which contributes to their durability.
Irises grow from a rhizome, a form of modified stem that creeps along the ground just beneath the surface. Irises have a fat, fleshy rhizome for storing water and starch, which contributes to their durability.