Walton's Plant Library

Other Names:  Dipladenia

Description:

This evergreen, twining vine produces rich red trumpet flowers from spring until fall; a lovely choice for trellises, garden fences or walls; prefers part shade

Ornamental Features

Red Mandevilla features bold red tubular flowers along the branches from late spring to mid fall. It has dark green evergreen foliage. The glossy pointy leaves remain dark green throughout the winter.

Landscape Attributes

Red Mandevilla is a multi-stemmed evergreen tropical plant with a ground-hugging habit of growth. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This tropical plant will require occasional maintenance and upkeep, and can be pruned at anytime. It is a good choice for attracting butterflies and hummingbirds to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

• Insects

Red Mandevilla is recommended for the following landscape applications;

• Accent
• Hedges/Screening
• General Garden Use
• Container Planting

Planting & Growing

This plant is native to the tropics and prefers growing in moist environments with evenly warm conditions all year round. In our climate, it is usually grown as an outdoor annual in the garden or in a container. If you want it to survive the winter, it can be brought in to the house and provided with special care, and then returned to the garden the following season. In its preferred tropical habitat, as a shrub it can grow to be around 10 feet tall at maturity, with a spread of 24 inches. However, when grown as an annual or when overwintered indoors, it can be expected to perform quite differently, and its exact height and spread will depend on many factors; you may wish to consult with our experts as to how it might perform in your specific application and growing conditions.

This tropical plant does best in full sun to partial shade. It requires an evenly moist well-drained soil for optimal growth. It may require supplemental watering during periods of drought or extended heat. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid, and parts of it are known to be toxic to humans and animals, so care should be exercised in planting it around children and pets. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Red Mandevilla makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its spreading habit of growth, it is ideally suited for use as a 'spiller' in the 'spiller-thriller-filler' container combination; plant it near the edges where it can spill gracefully over the pot. It is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

-- THIS IS A TROPICAL PLANT AND SHOULD NOT BE EXPECTED TO SURVIVE THE WINTER OUTDOORS IN OUR CLIMATE --