Plant Base Online (beta)
© Deeproot Plant Base
common name: Bearded Iris, Cemetery Iris, White Flag
poisonous or irritant
dry soil, moist soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -18°C
USDA zone: 5 to 8
Rhizomatous perennial with broadly sword-shaped, grey-green leaves. Fragrant white flowers with white beards tipped with greenish-yellow, in late spring.
Moist to dry soil in sun. Drought tolerant.
By seed or division of rhizomes.
Native to the Arabian Peninsula.
In cultivation since ancient times. Was often planted on Muslim graves.