Answer: Bougainvillea is a tropical plant, so it is frost tender. However, in my experience, they come back extremely well. Don't prune it even though it may look unsightly. The damaged leaves will protect the plant if there are further frosts. It helps to protect the plant with burlap, old sheets, or frost cloth if frost is predicted. When new growth starts to appear as temperatures warm, then trim back the dead material. Bougainvillea bloom best if slightly stressed for both water and fertilizer!
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