A mandevilla trellis plant is actually a perennial, but its ability to survive and thrive depends on the climate and growing conditions. In its ideal growing zones of 9 to 11, mandevilla is a perennial plant that can come back year after year. However, in areas where temperatures drop below freezing, the plant cannot survive the winter months and is typically treated as an annual.
Living in a place with freezing temperatures can pose a challenge for growing mandevilla as a perennial. But fear not! There are steps you can take to keep your mandevilla trellis plant alive and thriving through the winter months. The key is to bring it indoors and create a suitable environment for it to survive until it can be moved back outdoors in the spring.
Here are some tips for overwintering your mandevilla trellis plant:
1. Timing: Before the first frost hits, it’s important to bring your mandevilla indoors. This is usually in late fall or early winter, depending on your specific location. Keep an eye on the weather forecast and plan accordingly.
2. Pruning: Before bringing your mandevilla indoors, give it a good pruning. Trim back any long, leggy growth and remove any dead or damaged branches. This will help promote healthy growth and make it easier to manage indoors.
3. Container and Soil: Choose a suitable container for your mandevilla. Make sure it has drainage holes to prevent waterlogging. Use a well-draining potting mix that is rich in organic matter. This will provide the necessary nutrients for your plant while allowing excess water to drain away.
4. Watering: Mandevilla plants prefer moist soil but do not like to sit in water. Water your plant thoroughly when the top inch of soil feels dry to the touch. Avoid overwatering, as this can lead to root rot. Monitor the moisture levels closely, especially during the winter months when indoor humidity may be lower.
5. Light: Mandevilla plants thrive in bright, indirect light. Place your plant near a window that receives plenty of sunlight. If natural light is limited, you can supplement with artificial grow lights to ensure your plant gets enough light to thrive.
6. Temperature: Mandevilla plants prefer temperatures between 65-75°F (18-24°C). Avoid placing your plant near drafts or areas with extreme temperature fluctuations. Keep it away from cold windows or heating vents that can cause stress to the plant.
7. Humidity: Mandevilla plants appreciate higher humidity levels. To increase humidity, you can place a tray of water near the plant or use a humidifier. Misting the leaves occasionally can also help provide some moisture.
8. Fertilization: While your mandevilla is indoors, you can reduce fertilization to once every 4-6 weeks. Use a balanced, water-soluble fertilizer and follow the instructions on the packaging. This will provide your plant with the necessary nutrients to sustain it through the winter.
9. Pests and Diseases: Keep a close eye on your mandevilla for any signs of pests or diseases. Common pests include aphids, mealybugs, and spider mites. Treat any infestations promptly with an appropriate insecticide or by using natural methods such as neem oil or insecticidal soap.
10. Spring Transition: As the weather warms up in the spring and the risk of frost has passed, gradually acclimate your mandevilla to outdoor conditions. Start by placing it in a shaded area for a few hours a day, gradually increasing the exposure to sunlight over a week or two. This will help prevent shock and ensure a successful transition back outdoors.
By following these tips, you can successfully overwinter your mandevilla trellis plant and enjoy its beautiful blooms year after year. Remember, each gardening experience is unique, and it’s important to adjust your care routine based on your specific plant’s needs and your local climate conditions. Happy gardening!
