If your trellis is looking bare, or you just love the look of a vine curling around your home or backyard, consider adding a mandevilla plant to add some color and beauty to your space. Not dissimilar to bougainvillea, mandevillas are a vine that bloom incredible, five petal flowers. They come in all kinds of hues, from spring whites to bold reds. While with proper care they can survive for years, if you need some guidance, we compiled all the information you need to know before opting for this plant.How should mandevillas be planted?Because mandevillas are a vine plant, they need space to crawl. They're fast-growing, and can reach up to ten feet high. How you plant your mandevillas has more to do with your space. As natives to Brazil, they require a decent amount of heat to survive. If you live in a cooler climate, they will need to be brought indoors during the winter. That means that planting them outdoors may not be the ideal scenario unless you live someplace warm. If you are lucky enough to own a greenhouse, they would thrive there.Vincent Jary//Getty ImagesMandevillas make popular outdoor plants. How long do mandevillas live?With the right care, including regular pruning, sunlight, and warmth, Mandevillas can be a long-lasting and vibrant addition to any garden or outdoor space. Mandevillas are considered perennial plants, which means they bloom on an annual cycle and can live for years. With proper care, your mandevillas can survive for up to ten years. In tropical and subtropical regions, they may live for up to 10 years or more, continually growing and flowering each season. However, in cooler climates, they are often treated as annuals unless brought indoors or overwintered in a protected environment, which allows them to survive and flourish for multiple growing seasons. When do mandevillas bloom?Mandevillas are known for their vibrant, trumpet-shaped flowers that bloom throughout the warmer months. Typically, they begin to bloom in late spring or early summer, once temperatures consistently rise above 60F (15C). In warm climates, mandevillas can have flowers for nearly the entire year. However, if you live somewhere cooler, you may notice flowers begin to pop up in the spring, and last all the way through until the first frost, when they should be brought indoors. In this scenario, you have two whole seasons to enjoy the mandevillas stunning flowers. To encourage blooming, its important to provide them with plenty of sunlight, regular watering, and occasional feeding with a high-phosphorus fertilizer. How much sunlight to mandevillas need?Because they are native to warmer climates, experts believe that mandevillas optimally require about six to eight hours of direct sunlight. The less sun they receive, the fewer flowers will bloom. If you successfully plant your mandevilla in a shadier area, the plant can still survive, but it may demonstrate fewer blooms and leggier growth. For optimal results, plant Mandevillas in a spot where they receive morning or afternoon sun, and if growing them indoors, place them near a sunny window or under grow lights to mimic natural sunlight. RicardoImagen//Getty ImagesMandevillas thrive in well-draining soil and a pot that allows for moisture to escape. How often should mandevillas be watered?Mandevillas prefer consistently moist but well-drained soil, meaning they should be watered regularly, especially during the warmer growing season. Typically, watering once or twice a week is sufficient, depending on the temperature and humidity. If you have your mandevillas in a pot, wait until the first inch is dry before you water themthis should be about once a week. Mandevillas are prone to root rot, so don't let them sit in water. Well-draining soil and a pot that allows for moisture to escape, like unglazed terracotta, is ideal. During hotter periods, you may need to water more frequently to keep the soil from drying out completely. In cooler months or when the plant is dormant, reduce watering to avoid over-saturating the soil.Can you propagate mandevillas?Yes, Mandevillas can be propagated easily through stem cuttings. The best time to propagate them is during the spring or early summer when the plant is actively growing. To propagate, select a healthy stem thats about four to six inches long with a few leaves. Cut just below a node, remove the lower leaves, and dip the cut end in rooting hormone to encourage root development. Plant the cutting in a pot filled with well-draining soil, keeping it moist and in indirect sunlight. In a few weeks, the cutting should develop roots, and once it establishes itself, it can be transplanted into a larger pot or garden.Should you prune mandevillas?Mandevillas don't need to be pruned for their health. However, if your plant is getting larger or more unruly than you like, pruning them can help maintain their shape, encouraging fuller growth, and promoting more blooms. The best time to prune is in late winter or early spring, before the growing season begins. Start by trimming away any dead, damaged, or weak stems to improve air circulation and overall health. You can also cut back the longer, leggy vines to encourage bushier growth and more flower production. Regular pruning throughout the season helps keep the plant tidy and manageable, especially if its grown as a potted or trellised plant. Be sure to use clean, sharp pruning shears to avoid damaging the stems. Are mandevillas pet-safe?Though mandevillas are not considered toxic, some studies have shown that they can be upsetting to pets or even children if ingested. The plants can also produce a sap that can irritate the skin. For these reasons, it's best to keep your mandevillas away from curious hands or teeth.Tatjana FreundFashion & Luxury Commerce EditorTatjana Freund is Hearst's Fashion & Luxury Commerce Editor, covering beauty, fashion and more across multiple brands. Previously, she worked at ELLE.com and Marie Claire. She's a fan of whiskey neat, podcasts that give her nightmares, and one time Zo Kravitz laughed at a joke she made.