How do I care for my Mandevilla vine indoors during winter?

Answer

Mandevilla is a beautiful flowering woody-stemmed plant that winds its stems around any support and is easy to grow. This plant will not make it outdoors in freezing temperatures but can be overwintered indoors in a cold space with some light.  A cool room of 55 degrees in winter is fine, with added humidity since it is dry indoors in winter. You can use a pebble tray to add humidity around the plant --  just a larger saucer filled with a couple of inches of small pebbles and water added. Set the plant with its own saucer on top of the pebble tray saucer. Keep it in bright window.

Another option for over-wintering your Mandevilla is to allow it go dormant. Keep the vine outside until it gets nice and cool and then move it into a cool garage or basement that maintains a winter temperature above freezing, around 50º F is ideal. In this scenario you should cut the plant back hard, to about 12 inches. Occasionally give it water so that it doesn’t dry out, but essentially leave it alone.

Bring it into the house when spring is just around the corner and let it start to grow. Then set it outside once the days get warm and enjoy this beautiful plant throughout the summer. 

Courtesy of NYBG Plant Information Service

  • Last Updated Jan 05, 2023
  • Views 155
  • Answered By Anita Finkle

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