Answer: Some annuals are technically perennial plants or shrubs in their native warmer climates. Others, such as coleus, are not terribly long lived no matter where they grow. You can try digging them up, repotting and cutting them back, and they will probably survive the winter for you. However, by next spring the plants may be very rangy and nearing exhaustion. For this reason, many gardeners will take cuttings of their favorites and keep them over the winter. Then, in spring, they will take new cuttings and/or plant these replacements outside again. This way there are always newer and more vigorous plants and an insurance policy (the mother plant plus cuttings) against loss.
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