When a worm squirms around the garden they help make the soil more crumbly which improves soil structure. Improved soil structure allows air and water to flow more freely.
The movement of a worm also creates tunnels which aerate the soil underneath to the benefit of those plant roots.
If you only want one worm tube, it's cheaper to just buy one worm tube online.
But if you're looking to have multiple worm tubes then consider making them as you'll have all the supplies on hand.
This is an easy step-by-step guide on how I built four more tubes/towers for our three raised beds.
And if you have never heard of a worm tube....that's up next!