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Winterizing Potted Perennials in Chicago (Zone 5)

For hibiscus, clematis, delphinium: move to unheated porch after frost induces dormancy (leaves dead). Prune to 2–3 inches (except clematis—prune per its group in spring). Water when top few inches dry. Group pots, surround with hay for insulation. Terra cotta pots may crack; plastic is safer.

Mandevilla is tropical—must come indoors to a sunny window before frost. Prune hard, provide trellis, water sparingly, no fertilizer until spring. Take cuttings as backup.

Perennials: Winter Rose Protection: Mounding vs. Buckets vs. Foam Cones in Heavy Snow Climates; Overwintering Balcony Plants in Chicago: Which to Bring In; Winter Care for Potted Perennials: Lilies, Hibiscus, Datura, Coleus, and Bulb Forcing; Dividing Newly Purchased Perennials: Risks and the Role of Harpin Protein; Overwintering Hibiscus Trees Indoors in Toronto; Sun-Loving Perennials: Gaura, Blanket Flower, Coreopsis, and "Chameleon"; Fall Care for Iris and Daylilies in Georgia: Cutting Back and Dividing; Overwintering Sale Perennials: Plant Now, Don't Store in a Cave; Overwintered Perennials Indoors: When to Plant Out?; Preparing Perennials for Winter: Mulching, Cleanup, and Planning Ahead

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