From MI Gardener:
How to build raised beds from start to finish. This garden was a 4x4, and the cost was a total of $56. That is $28 dollars per bed - including soil and plants.
(8) - 2"X8" 4 ft. = $20
(2) - 3 cu. ft. Spagnum peat moss bricks = $15
(2) - 40 lb. bagged mushroom compost = $6
(2) - 40 lb. bagged cow manure = $6
(42) vegetable plants = $9
Editor's comment: SIPs such as Earthbox or Growums are still an easier and more efficient method to grow vegetables than raised beds.
How to Make a Raised Garden Bed from Bricks - YouTube http://buff.ly/1f7U9AH