The idea of using durable reusable trays rather than flimsy disposable plastic pots appealed to me. I wanted to try it out so I decided to make my own set of planting flats.
Step 1: Get Materials
Step 2: Cutting Up
Step 3: Drill Holes
Step 4: Assemble the Boxes
Step 5: Cut Slats for the Bottom
Step 6: Finish the Bottoms
Step 7: Lots-o-Flats
Step 8: Use 'em
Here's a bunch of sunflower sprouts.
The deeper flats get more mature plants planted in them like these tomatoes. I made a grid of cardboard to keep the roots from growing into each other.
If you like projects, and I know you do, come on over to Mike and Molly's House where we do Mighty Projects on our Mini Farm (aka our backyard).