Sweet Flag was well-known to earlier generations of gardeners; leaves and roots have a variety of medicinal uses and the fragrant foliage was scattered in front of doorways to welcome visitors. Each tall, narrow, iris-like leaf sports a fat, creamy-white stripe. Creeping rhizomes slowly spread to form large colonies in favorable conditions, but the variegated form is not as aggressive as the regular green variety. While this native perennial doesn't require wetland conditions, it will need more moisture as heat and sunlight increase. Sweet Flag is very hardy and semi-evergreen in zone 7 and south. A bold addition to a wet area; streamside, pond's edge, or in a container.

Bloom color: pale-yellow
Bloom period: none / insignificant
Height: 2-4'
Spread: 2-3'
Zones: 4-8