Since 'Cosmic Orange' grows about 12 to 20 inches tall, no staking is needed. Cosmic Orange' performs best in a well-drained soil and full sun. Plants do tolerate dry conditions. Plants grow about 1 foot tall and produce glossy, dark green foliage. Like other vincas, 'Stardust Orchid' is heat and drought tolerant.
Plants perform best in well-drained soils and full sun.
They perform poorly in wet soils and cool weather. The shorter plant height makes it easier to utilize the plants in the garden. The large leaves have a velvety texture. Mexican sunflowers are heat and drought tolerant. They perform best in well-drained soils and full sun.