Two-Part Wooden Greenhouse | Natural Fir Wood Cold Frame with Separable Design OUTSUNNYDouble your growing potential with this innovative two part wooden greenhouseCrafted by Outsunny, this versatile cold frame combines natural fir wood with heat retaining polycarbonate panels and a smart separable design. The upper cold frame protects plants, herbs and flowers from light weather while allowing nourishing sunlight through, while the lower section features a metal heat box that absorbs warmth, keeping roots at an optimal temperature for