In today's article you said that a tree should be overwintered outdoors if it...

Asked November 2, 2014, 7:30 PM EST

In today's article you said that a tree should be overwintered outdoors if it could not be planted now. I have a bunch of volunteer butterfly bushes that sprouted up from seed and I just discovered them a week or so ago. Dug them up, put them in pots in my greenhouse. But these are plants that normally winter outdoors. I was afraid they were too small to do that. Can I keep them in the greenhouse over the winter?

Carroll County Maryland shrubs butterfly bush overwintering

1 Response

The butterfly bush volunteers can be overwintered in the greenhouse. Be aware that volunteers will not come true to form. Butterfly bush is a plant to watch. It spreads by seed dispersed mostly by wind. If you find this plant in the wild or in open areas that are to be managed as a natural habitat, remove it so it does not displace native species.
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