Concrete Block Raised Bed

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I am thinking of making a similar design for my vegetable garden.  I am actually thinking of using some woods but after seeing this, I guess this would last longer.  I have to consider the extreme rainy season in the Philippines where typhoons seems to be a normal occurrence, so I guess concrete blocks will work best than pallets of woods.  I've started growing vegetables on containers as I would love the idea that I could transfer these pots anywhere in the yard but my other green veggies require larger space such as the sweet potatoes, so I need to have a raised bed. I think this one will work best in our yard. :)