Dipladenia sanderi, better known as Mandevilla sanderi, is a South American member of the periwinkle family. This plant is also called Brazilian jasmine, Mandevilla and Brazilian rose. It produces trumpet-shaped red, pink or white flowers and takes the form of a twining vine. Like other tropical flowers, Dipladenia sanderi requires warm temperatures and may require special care to survive the winter in temperate climates.
Mandevillas prefer full sun and produce larger, more profuse and healthier flowers in these conditions but will tolerate partial shade. In very hot climates, provide shade at midday to prevent scorching. These plants do best in well-drained soil with good moisture. The vine can tolerate moderate salinity and may be used relatively close to the ocean. It does not usually do well in saline arid conditions without extra irrigation.
Mandevilla sanderi vines prefer warm temperatures and are considered sensitive to freezes. They grow outdoors year-round in U.S. Department of Agriculture growing zones 9 through 11 or southern California and Arizona, extreme southern Texas, south and central Florida and Hawaii. In Zone 8, this plant usually dies to the ground after the first frost but recovers in spring. Growers in cooler climates may need to bring their plant indoors during the winter to keep it healthy.
Unlike many plants, Dipladenia sanderi does not benefit from being cut back in the winter. Unless the plant has overgrown during the warm season, leave its shoots intact. You may need to cut back some potted specimens to move them indoors for the winter due to this plant's sprawling form and tendency to climb nearby objects. However, you should cut your Dipladenia back as little as possible.
This plant has adapted to moist, warm tropical conditions and may suffer from some chill damage even in relatively warm climates. Plants moved indoors often develop dieback at the tips due to reduced humidity. Provide extra moisture for indoor specimens, and shelter outdoor plants to reduce the chance of growing tip damage. If your plant does suffer from damage over the winter, remove the dead growth and fertilise in late winter or early spring.
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- University of Florida; Mandevilla sanderi 'Red Riding Hood' Red Riding Hood Allamanda; Edward F. Gilman; May 2007
- University of Oklahoma; Mandevilla sanderi 'Sun Parasol Crimson'; Cal Lemke; June 27, 2008
- University of Arkansas: Tropicals -- Mandevilla
- Floridata; Mandevilla spp.; Jack Scheper; August 17, 2003
- United States National Arboretum; USDA Plant Hardiness Zone Map; 2003