Gazania. Gazania, Aster Family: ( Asteraceae ), Gazania. Also called Treasure Flower. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Gazania is a genus of flowering plants in the family Asteraceae, native to Southern Africa. It is often planted as drought-tolerant ground cover. This is a very popular landscaping plant in Arizona and it is considered a short lived perennial. Quick Notes: Height: Up To about 12 inches tall and about 12 inches wide. Flowers: Daisy like flowers up to about 4 inches across. They are yellow, gold, or orange with a dark zone around the central disc. Flowering Time: Mid March - May. Seeds: The seeds are almost circular, 1/2 inch or slightly more in diameter, brown to reddish brown, flattened, irregularly angled, with a finely pitted surface. Leaves: Leaves turn upwards at night. Found: Native of South Africa. Hardiness: USDA Zone 8b: to -9.4 �C (15 �F) USDA Zone 9a: to -6.6 �C (20 �F) USDA Zone 9b: to -3.8 �C (25 �F) USDA Zone 10a: to -1.1 �C (30 �F) USDA Zone 10b: to 1.7 �C (35 �F) Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline) 8.6 to 9.0 (strongly alkaline) Sun Exposure: Full Sun Sun to Partial Shade Light Shade Elevation: 0 - 2,500 Feet. Habitat: Alkaline, well-drained/light soils. An ideal landscape plant in Arizona. Native of South Africa. Miscellaneous: Flowering Photos Taken March 23, 2003. Glendale, Arizona.