A single unit plant protection device in a vertical open top cone configuration. Fabricated from recycled plastic material to form a blanket of bubbles or dead air cells. Tinted green to aid in heat absorption while still allowing light to penetrate through to young plants. Designed to slip over an inverted 12".times.33" three wire tomato cage for support. Functions as a barrier against cold, wind, insects, and disease. May be reversed after last frost to provide protection for balance of plant's life while tomato cage provides structural support to plant.