Gladiolus is the largest genus in the Iridaceae family with around 255 species. They are perennial bulbous flowering plants, sometimes called Sword lilies, but usually by its generic name, Gladiolus. It has been studied by taxonomists and now includes the genera Acidanthera, Homoglossum, Anomalesia and Oenostachys. The geographic range includes Africa, Madagascar, Europe, and the Middle East. They are treasured the world over for their beautiful, showy flowers which grow on tall spikes. These plants are often planted in cut flower gardens or in the back along the border, as they grow 60cm to 1.8 m tall. They make excellent cut flowers and are easily grown in raised garden beds and rockeries. Most Gladioli do equally well in pots. Gladioli are the flowers associated with a fortieth wedding anniversary.

Gladiolus virgatus, commonly known as Helderberg Painted Lady, is a South African endemic species found growing in the Western Cape province where it is restricted to cool, well-watered slopes of the coastal ranges. It has been found in clay soil on ground covered with scattered sandstone boulders. Growing from 30 to 60 cm high, it has linear leaves with slightly thickened margins and midribs. The pale to deep pink or nearly white large unscented flowers are marked on the lower tepals with a spear shaped whitish median streak edged with a reddish v shaped mark, speckled in the throat and are in a two to four flowered inclined spike. The dorsal tepal is inclined over the stamens. This species flowers during spring from September to November.