south, the SFG captures more light and heat during the colder months of spring and winter. In 2006 Bartholemew updated the concept with the book "All New Square Foot Gardening", which advocates using “Mel’s Mix” created by Bartholomew. After much experimentation, Bartholomew concluded that his formulation of 1/3 peat moss or coconut coir, 1/3 vermiculite and 1/3 blended compost yielded superior results in only a depth. The benefits of the mix included keeping soil friable and virtually weed free with all the necessary nutrients. This mix eliminated the need for artificial fertilizer as compost is added each time you re-plant a square which provides enough nutrients naturally. See also Companion planting French intensive gardening Organic gardening Raised bed gardening References Further reading External links Square Foot Gardening Foundation Vinegar in Garden Step By Step Square Foot Gardening Gardening books Gardening television Organic gardening