Making a square foot or container garden can be easy and thrifty. This size and style is handy because from any side of the container you can easily reach into the middle to pull weeds, water or harvest. Not counting the soil it was about $10.
2 (2ft.x4 ft.x 8ft) boards
Gardening soil (I use a mix of peat moss, garden soil, and Manure/organic soil booster)
Go to you local big box hardware store and ask them to cut two 2x4x8 boards in half.
Nail the 4 boards into a square.
Line the bottom of the garden bed with plastic to prevent weeds.
I filled my containers in layers and then gently mixed them together ,but you can fill yours anyway you like.
manure/organic soil booster
Plant and enjoy!