we teach square foot gardening. I wrote an ebook, in part, because of the vast amount of bad information that is floating around out there about square foot gardening. It’s amazing to read and it’s all over the place. This is an example of that. We had a great article about square foot gardening in one of the local papers yesterday. I read it and then saw some of the comments. There was a lot I could talk about but this one will do. Here is what it said: “I also think that the claim that most things only grow in the first 6 inches of soil is inaccurate. Here is a link that discusses root depth (among other things) of common garden vegetables. Most have a tap root longer than 6 inches within 3 weeks of planting! Do you really think you are going to be able to maximize your garden production by stunting the growth of your roots so early on?” How does that old saying go? “A picture is worth a thousand words?” Well, then here you go. This is a picture of 4 perfect heads of lettuce that grew in a 6″ container of Mel’s mix. End of story. We have pictures at the foundation of plants that are 8 feet tall which have been grown in 6″ of soil. Here’s the real problem. Folks who think like this(he’s a master gardener by the way!)have been trained in the university agricultural methods. That’s great-for farming! Not so much for us backyard gardeners. The reason he thinks this way? Simple. In the agricultural courses your taught that you’ve got to have these long tap roots. And you do! The reason why is that these old farming lands have been stripped of much of the nutrients and trace elements(despite all their efforts to amend their soil with manure in the off-season)and these roots have to keep going down, down, down in order to hunt for food(nutrients)and water. The reason why it works in 6″ of Mel’s mix is that everything you need is right there! No need for big tap roots! No need for plants to keep going down in order to find nutrition and water. Our gardens are at least 33% compost while the typical farm land is less than 5%. Therein lies the big difference. So, don’t be intimidated by your master gardener friends. Mel wrote his book and found that the experts, as a general rule, all came to the conclusion that square foot gardening couldn’t work because it’s too easy. And, their right-it is easy…..
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