I definitely believe double-digging is worth doing. As you can see in this post, the results are excellent. And take a look at this double-dug bed:
But in case you don’t believe me, here’s a good explanation from another gardener on the value of double-digging:
Why Double Dig?
I’ve double-dug multiple beds over the last year. Though it’s a total pain, those beds are much more productive than those I started without double-digging. They even beat my raised beds with perfect soil mixes – even though the double-dug beds are mostly sand.
Go figure. Double-digging grows me more food, so I do it. Plus, the exercise of double-digging is worthwhile.
Incidentally, isn’t that some amazing dirt in the video? I wouldn’t mind having some Wisconsin soil – without the Wisconsin weather. Sadly… I believe one creates the other. There’s nothing like a good rest under ice and a nice rot-down of vegetation to build humus.
The best book on double-digging and growing tons of food in small spaces is this one:
Pick up a copy and start getting more from your soil.