Impress your neighbors and build a simple cold frame for a year-round vegetable garden using an old window and some salvaged wood.
· Recycled window sash (avoid lead paint)
· Recycled wood (avoid pressure-treated varieties)
· Wood screws
· 2 galvanized hinges
· Measuring tape
Step 1: Build the bottomless box
Measure your recycled wood out and cut 4 pieces to fit your rehabbed window sash, making sure the front end of the box will be shorter so that it will slope downward. This allows for proper heat retention and water and snow drainage. The bottom of box will be buried at least one foot into the ground, so take this into account when you measure. Put the pieces together using the wood screws.
Step 2: Attach the window sash
Screw the hinges into the back end of the box, joining the window sash and the box together. The window-lid should fit flat against the box frame. You can attach handles to the lid or sides of the frame for convenience.
Setting up your cold frame:
· Pick a sunny location
· Place your cold frame at least a foot into the ground for insulation
· Face the cold frame towards the south
· Consider placing a thermometer inside the cold frame to monitor temperatures