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how deep should my 4 x 4 garden be?

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how deep should my 4 x 4 garden be?

Post  Lucysliving on 3/7/2012, 8:43 am

I am just getting ready to start my own little square foot gardens and have some questions about how deep the soil should be. I know the gardens are four by four but how deep are they? Do they have a bottom? And how thick is the wood that creates the square?


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Re: how deep should my 4 x 4 garden be?

Post  lisaphoto on 3/7/2012, 8:51 am

Have you read the all new Square Foot Gardening book yet? If not, make sure you check it out. In the book, Mel states that most vegetables will do fine in just 6" of mel's mix. Some people on here go a little deeper just for good measure, or if they have a dry and hot climate. Also, root vegetables like carrots need to go deeper, but you can build a small "top hat" for the box that is basically a smaller wooden box you place on top of the mel's mix in your SFG so you can add some Mel's mix to the box for greater depth for carrots and such.

If your boxes are going to be on the ground, they don't need a bottom other than weed cloth. If you have a problem with burrowing animals, you may need to add hardware cloth to keep them out. If you are doing table top, I think most people use plywood with holes drilled for drainage.

I think you want to use wood that is at least an inch thick to have it strong enough.


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Re: how deep should my 4 x 4 garden be?

Post  WolfHeart on 3/7/2012, 8:57 am

first and foremost....
glad you\'re here glad you\'re here glad you\'re here

I can tell you what I have and then you can build according to your own needs.

I have two 4x4x6" (one year old) and I just made a 4x4x10" box.
I made the deeper box for all my root type veggies like carrots and parsnips and onions.

6" is all you really need, if you want to do carrots just put up a high rise on one square and then you have 12" of growing depth. I did this last year and it worked really well. however the aesthetic didn't please me so i talked my better half into another box this year Very Happy

Hope to see you around the boards and I can't wait to hear how your gardens works out for you.


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Re: how deep should my 4 x 4 garden be?

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