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The third and final approach to overwintering your perennials involves bringing them indoors. This is especially beneficial for large plants or those that are only marginally hardy, offering them the best chance of survival.
This method is particularly effective for sizable ornamental grasses and less winter-tolerant evergreens. Spaces like an unheated basement, a sheltered garage, or a barn are all excellent options.
When overwintering in a protected yet unheated environment, the perennials will enter a dormant state, similar to if they were outdoors, but with added safeguarding. While indoors, water them every two to three weeks to maintain slightly moist soil.
Before the threat of a severe freeze, relocate the plants to their designated “winter” space. For perennials with foliage that dies back, simply trim the leaves down to the base and apply a layer of mulch. They won’t require an abundance of light at this stage.
As the weather begins to warm up, you can move the plants back outdoors and relish in their presence for another entire growing season. Here’s to successfully safeguard your potted perennial plants and ensuring their well-being over the winter!
