Answer: China Doll (Radermachia sinica) is a very popular houseplant, but typically will not grow outdoors all year around. However, under the right conditions, they can (and obviously will) grow outside. The site yours is planted in must be extremely protected and provide just the right micro-climate. This will be hard to duplicate in other areas of your yard, especially if they are more exposed to the elements. I wouldn't discourage you from trying to grow a China Doll in another area of your garden, but I would caution you that you may not be successful. Hope you are!
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