Mandevilla (Mandevilla sanderi), also called Brazilian jasmine, grows well in the garden. Its bountiful blooms add color, and the fast-growing plant is basically free of pests. This woody vine is native to southeastern Brazil. Mandevilla is hardy in USDA zones 9 through 11. It can grow in zone 8, but will die back in the winter and regrow come spring. Its large, bright pink flowers bloom throughout summer against dark green foliage on vines that can climb up to 10 feet tall.
Plant mandevilla vines in a location that receives full sun in the morning with partial afternoon shade. Mandevilla vines grow best with some shade.
Grow in well-draining soil that is rich in humus. Add a couple shovelfuls of humus, compost or manure when tilling the ground before planting the mandevilla vines. If planting more than one vine together, space several feet apart.
Use a support for the vines, such as a trellis, lattice or arbor. Pull the twining stems through the support and as the vine grows, continue wrapping the stems upward around the support. If needed, tie the stems to the support with floral ties or strips of nylon.
Water the mandevilla vines consistently three to four times a week so the soil is adequately moist. Using a soaker hose or irrigation drip system ensures the soil is watered deeply.
Feed the vines with a high-phosphorus 10-20-10 fertilizer every two weeks once the plant starts budding. Use a water soluble fertilizer and water in well when applying.
Add a 2-inch layer of mulch to help control weeds and retain moisture in the soil. Use shredded bark or chopped leaves. Add another 2 to 3 inches of mulch in late fall to further protect the vines from the cooler winter temperatures.
Move the mandevilla vine indoors during the winter in areas above USDA zone 9. Grow the vine in a container and set outside from spring through early fall. When temperatures begin to drop below 45 degrees Fahrenheit, cut the plant back to 12 inches above the soil and move inside. Keep the soil on the dry side, watering only once a week. Place the mandevilla in front of a large window for bright, insdirect sun.