D. vegeta makes large, grassy clumps with many 3 inch pale yellow flowers with colored markings of yellow and violet. They may be considered a little less maintenance-free than bicolor, because when the individual leaves die, they must be clipped off in order to maintain neatness, rather than pulled.

Dietes Vegeta is a moderate growing perennial plant that can be grown in USDA Plant Hardiness Zones 8A through 11. It matures to an average height of 2 feet to 5 feet and an average width of 2 feet to 4 feet, depending on climate and other environmental factors. It prefers growing in a location that provides full sun, morning sun with afternoon shade or morning shade with afternoon sun and grows best when planted in sand, loam, clay or silt soil that is well drained. In the spring, summer and fall Yellow African Iris produces yellow, orange and red flowers. The foliage is medium green in color. It attracts butterflies and visual attention and is resistant to deer, drought, insects, diseases, mildew and heat.

Yellow African Iris can be useful in the landscape along woodland borders, in mass plantings, in foundation plantings, in containers or planters, as a border or edger, around decks, swimming pools, and other outdoor living areas, as an accent, under a shade tree, as a groundcover or in landscape beds or islands and also in rock or xeriscape gardens, theme gardens, cottage gardens, butterfly gardens or perennial gardens.