In parts of zone 8 where winter frosts might occur, mandevillas planted outdoors often die back to the ground but regrow from surviving roots the next spring. In colder zones, mandevillas can be planted outdoors as annuals or maintained year round in containers that are brought indoors when cold weather arrives.

Does mandevilla come back each year?

It can go outside again next spring. Or you can let it go dormant in a cooler garage or basement. Move your potted vine into an area that stays above 50 degrees. ... Mandevilla flowers on new growth, so if you give it an early spring dose of fertilizer once it starts growing again, it will flower earlier for you next year.

Can a mandevilla survive winter?

Unfortunately, mandevillas are tropical plants and can't withstand temperatures much below 50 degrees. If you want to keep your mandevilla alive over the winter, bring it inside as a houseplant during the cold season.