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Every year I buy a new mandavilla plant for the corner of our porch. We love the way it vines up the support post and piece of fencing that I put there for that purpose and the blossoms are vibrant and make a beautiful accent. My question is this; how do you over-winter this plant? A new one every year costs about $25. I know they are a tropical and the first frost kills them. What do I have to do to keep it alive inside so I could set it back out in the spring? Thanks for any and all suggestions. Mark

Tags: mandavilla, over-winter, tropical.

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I have overwintered my mandevilla for three years now. I keep it potted on my deck until temps start to get cold, then I bring it into my garage. I have a large window and two flourescent shop lights that I keep on a timer all winter for a number of plants that I don't want to replace, some that grow all winter (orchids) or annuals I want to make last longer, like some herbs, lettuce and green onions grown in window boxes. My two hibiscus are the other big tropicals that have lived several years now. They start dropping leaves, and once the flowers are gone I prune them back to a manageable size. The only downside I've found with the mandevilla is that it takes it longer to flower in the spring. I don't get blooms until much later than the ones at the nursery, but I'm okay with that. I'm careful not to overwater, and I have a box fan to circulate the air if it gets really cold. It's a heated garage, but it obviously loses heat when we go in and out.

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