Red and Orange Gladiolus A-Z

Several species settle for these clear signal colors, often associated with bird pollination. This may result in very special flower shapes with long perianth tubes.

Though magenta is considered the basic red in printing color systems, we follow the common western color perception. Magenta colored Gladiolus can be found in the Purple Gladiolus index.


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Gladiolus pulcherrimus (G.J.Lewis) Goldblatt & J.C.Manning has very striking orange to salmon flowers that are similar to Gladiolus alatus but is distinguished by broad sword shaped leaves that lack prominent veins. It grow in the northwest Cape on sandstone slopes. This one, grown by Gordon Summerfield in South Africa, was blooming September 2003. Photos by Bob Rutemoeller, Alan Horstmann, and Rod Saunders.

Gladiolus pulcherrimus, Bob RutemoellerGladiolus pulcherrimus, Alan HorstmannGladiolus pulcherrimus, Rod Saunders


Gladiolus quadrangularis (Burm.f.) Ker Gawl. (syn. Homoglossum quadrangulare) is found on rocky sandstone slopes in the Northwest Cape. It has 4 to 10 red to orange flowers and blooms late winter into spring. Photos 1-3 were taken by Mary Sue Ittner showing plants that bloomed in Northern California March 2004 and 2007.

Gladiolus quadrangularis, Mary Sue IttnerGladiolus quadrangularis, Mary Sue IttnerGladiolus quadrangularis, Mary Sue Ittner

The photos below were taken by Nhu Nguyen. The seeds are on a 1 cm grid.

Gladiolus quadrangularis, Nhu NguyenGladiolus quadrangularis, Nhu NguyenGladiolus quadrangularis, Nhu NguyenGladiolus quadrangularis, Nhu NguyenGladiolus quadrangularis, seed pod, Nhu NguyenGladiolus quadrangularis, seeds, Nhu Nguyen


Gladiolus reginae Goldblatt & J.C.Manning is a rare species known from only two populations where plants grow in open woodland in rocky outcrops, partially shaded by shrubs and trees, in heavy metal-enriched soils. Growing from .4 to 1.5 m, it has 7 to 16 unscented long tubed flowers in an erect spike. Flowers are pale flesh-pink flushed deeper salmon and the lower three tepals are flushed deep red in the basal third with longitudinal lines. The upper three tepals are flushed deep red at the base. Flowering takes place from mid March to mid April, but may skip a year if it's too dry. Goldblatt and Manning report that flowers are pollinated by long-proboscid flies, but also attract ants with sweet droplets from the tips of the bracts, likely for protection from other insects.

Photos by Rachel Saunders shows specimens found in the Blyde River Canyon Nature Reserve (situated in Mpumalanga).

Gladiolus reginae, Rachel SaundersGladiolus reginae, Rachel Saunders


Gladiolus saccatus (Klatt) Goldblatt & M.P.de Vos ,formerly known as Anomalesia saccata or Antholyza saccata, extends from the western Cape of South Africa into Namibia. It is found in both summer and winter rainfall areas. It has bright red flowers and is pollinated by birds. This one was growing alongside the road in Namaqualand. Photo #1 taken August 2001 by Mary Sue Ittner. The second photo was taken by Rod Saunders.

Gladiolus saccatus, Mary Sue IttnerGladiolus saccatus, Rod Saunders


Gladiolus saundersii Hook.f. is native to the southern and central Drakensberg and grows in summer on rocky outcrops, scree slopes and other exposed habitats in dry spots that are seasonally wet. It has bright red flowers that face sideways or are drooping. The lower three tepals are speckled in the lower half with red on a white field. This species is pollinated by butterflies. It is a winter-dormant species and its habitat is very cold in winter with frequent snow. It was named after Katherine Saunders who was a botanical artist in Natal in the 1800s. Photos 1-3 taken in the Eastern Cape February 2008 and photo 4 taken at Naude's Nek January 2010 by Cameron McMaster.

Gladiolus saundersii, Cameron McMasterGladiolus saundersii, Cameron McMasterGladiolus saundersii, Cameron McMasterGladiolus saundersii, Naude's Nek, Cameron McMaster


Gladiolus sekukuniensis P.J.D.Winter is known from two sites in Sekukuniland, west of the Transvaal Drakensberg where it is found on alkaline soils in open woodland and flowers from March to April. It grows from .6 to 1 m and has linear leaves with a thickened and raised midrib and a spike of 8 to 17 flowers. Flowers are white or cream to pale salmon pink with a narrow, dark red, longitudinal median streak on each tepal except for the dorsal where the streak is sometimes incomplete or lacking. The lower tepals sometimes have a yellow streak in the center. Flowers are distinctively windowed (in profile there is gaping between the dorsal and upper lateral tepals) with the tepals unequal and narrowed below into claws with twisted and undulate tail-like tips. Photos by Rachel Saunders.

Gladiolus sekukuniensis, Rachel SaundersGladiolus sekukuniensis, Rachel Saunders


Gladiolus speciosus Thunb. is found in deep sandy soils in the Northwest and Southwest Cape. It is similar to Gladiolus alatus with 2 to 8 flowers in a spike, orange marked yellow to greenish and hooded over the stamens. One of the distinguishing characteristics is that it is colored yellow on the reverse. The first four photos taken in the western Cape near Darling September 2006 by Bob Rutemoeller and Mary Sue Ittner. The last photo was taken by Andrew Harvie near Bokbaai in the Western Cape.

Gladiolus speciosus, Darling, Bob RutemoellerGladiolus speciosus, Darling, Bob RutemoellerGladiolus speciosus, Darling, Mary Sue IttnerGladiolus speciosus, Bokbaai, Andrew Harvie


Gladiolus splendens (Sweet) Herb., formerly known as Anomalesia splendens, is found in rocky clay, mostly near streams in the Roggeveld and the Calvinia district. The bright red flowers are formed in a strongly inclined spike. Photos 1 and 2 were taken by Mary Sue Ittner near Middelpos September 2006; photo 3 was taken by Bob Rutemoeller in a garden in Calvinia. Photo 4 was taken by Alan Horstmann. Photo 5 was taken by Uluwehi Knecht. Photo 6 by Nhu Nguyen shows the seeds on a 1 cm square grid.

Gladiolus splendens, Middelpos, Mary Sue IttnerGladiolus splendens, Middelpos, Mary Sue IttnerGladiolus splendens, Bob RutemoellerGladiolus splendens, Alan HorstmannGladiolus splendens, Uluwehi KnechtGladiolus splendens, seeds, Nhu Nguyen


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