Answer: Autumn fern (Dryopteris) is an outdoor fern. Cool weather in the fall and winter months make the plant produce lovely red spores on the undersides of the leaves. In spring, new foliage emerges in colors of copper, pink and yellow. With constant indoor temperatures your fern won't produce such lovely foliage, which is probably why you chose it in the first place. Plant it outdoors - in a container that you can place near the front door - and you can enjoy this lovely fern each time you enter or leave your home.
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