Alder, I was surprised that the day lillies perform miracles. They will even come back after a whole summer with no
water in clay soil. The gophers and voles go around. Even the wind tunnels that might be near their roots don't set them back. Same thing with asparagus. It is fearless in the face of dry clay soil and rodents want nothing to do with it. It's just that I don't need another 40 asparagus plants!
Garlic is my bulb of choice for rodent avoidance, it usually improves growing conditions, but I guess not for grapes. The wire mesh doesn't last more than a year in my soil, their claws just yank it apart. But I do use the basket for the first year to get a bigger rootball, and then when it falls away, the bulb protection takes over.
I've used daffodil bulbs for 20 years for protection around fruit trees, blueberry bushes, 4-6 around each tree or bush, depending on the size. Sometimes the bulbs get pushed up in the late fall, but for the most part they, too, don't care about the wind tunnels the gophers and voles put nearby. It's just that they aren't available at all times during the year, and I'm doing a large grapevine planting now. It would
be nice to get it all done at once.
An important distinction: Permaculture is not the same kind of gardening as organic gardening.
Mediterranean climate hugel trenches, fabuluous clay soil high in nutrients, self-watering containers with hugel layers, keyhole composting with low hugel raised beds, thick Back to Eden Wood chips mulch (distinguished from Bark chips), using as many native plants as possible....all drought tolerant.