Answer: Mandevilla is a tropical plant and will not survive your winters if left outdoors. They are typically grown in containers to enjoy outdoors in the spring and summer months and then taken indoors over the winter months. You can leave your plant in the ground now, but expect to dig it up and plant it in a container in late summer, then take it indoors when temperatures begin to drop to about 50F at night. Roses will grow outdoors in your region all year around. In the fall, after the first frost you can prune your rose back and then cover it so it is protected from the harshest temperatures. Some gardeners make cylinders out of chicken wire and set them over the roses, then fill the cylinders with fallen leaves or other bulky organic matter to help insulate the plants. You may want to do the same. Enjoy your new plants!
Q&A Library Searching Tips