How to Build a PC Grow Box

Written by bailey shoemaker richards
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How to Build a PC Grow Box
Raising garden plants in a PC grow box is easy. (strawberry image by matko from

A PC grow box is a method of building an interior greenhouse for growing garden plants, such as strawberries, throughout the entire year, including during the winter. Reusing an old PC reduces the amount of landfill waste, and the PC box provides an ideal place for growing small plants. Creating an inexpensive PC grow box is a project that can be completed in an afternoon and used for many seasons to provide fresh produce.

Skill level:
Moderately Easy

Things you need

  • PC box
  • Screwdriver
  • Polystyrene sheets
  • Scissors
  • Glue
  • Planter
  • Grow lights
  • Light timer
  • Extension cord (optional)
  • Surge protector (optional)

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  1. 1

    Use a screwdriver to remove one of the side panels from the PC box. Remove all fans, wires and other items from inside the box in order to empty it out and make room for the plants and grow lights.

  2. 2

    Cut the polystyrene sheets to fit the interior portions of the PC box. These will act as insulation for the box and will keep the interior warmer, which will allow plants to grow more easily. Use glue to attach the sheets to the box.

  3. 3

    Place the PC grow box near an outlet, or use an extension cord and surge protector to bring the grow lights to the box. Put plants in a square plastic or terra cotta planter and place them in the grow box.

  4. 4

    Plug in at least two small grow lights and place them inside the PC grow box. These will provide the light and energy necessary to facilitate plant growth.

  5. 5

    Replace the panel of the PC box that you removed in Step 1 at night or if the grow box is left in a cooler area of the house, such as a garage. Lean the panel against the grow box to help trap more heat inside it.

  6. 6

    Use a lamp timer to turn the lamps off periodically during the day to simulate realistic patterns of day and night. This will ensure better plant growth.

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