Gloriosa is a climbing vine which produces exotic-looking red and yellow flowers when it blooms. It is only hardy down to USDA zone 9, which means it cannot survive temperatures that drop below 20 degrees Fahrenheit. This plant is easy to care for, as it will survive just about anything in the right climate. Knowing how to create the right environment for the plant, however, will encourage flower production and vigor.
Plant the Gloriosa vine in an area with full sun and well-drained sandy-loam soils. The vine is very tolerant of nutrient poor soils, but will grow more vigorously if you mix some organic matter---such as leaf mold and decomposing bark---into the soil before planting. Alone, the Gloriosa can look sparse. Plant it with other vines on a trellis or as an accent among shrubs to get the maximum aesthetic value from the plants.
Place a 2- to 4-inch layer of mulch over the roots of the vine if you live in cooler regions. This will protect it against winter frosts if any happen to come along.
Water the vine, keeping it moist until it begins to grow vigorously on its own. After that point, decrease the watering frequency, allowing the soil to dry slightly in between. The plant will tolerate drought but will not produce as many blooms without some water during the hot, dry summer months. Stop watering in the winter to allow the plant to go dormant.
Fertilize the Gloriosa with a complete slow-release fertilizer after the plant starts growing vigorously. This will encourage growth and blooms. Follow the directions on the package for application instructions.