:goodpost:
Fantastic idea! I have sand, but lots of small pebbles and not-so-small pebbles make for twisted carrots. I might have to do this! Thanks for sharing.
Can you post a picture of this? I don't know what it is.
I planted onions (sets, not seeds) in between the potato plants. Normally, there wouldn't be anything there, so it was unused space. Bonus: not a single potato beetle to be found. Best ever harvest of potatoes and onions.
I have cilantro...
Ditto on the vertical planting ideas. Look also at what plants are good companions to other plants. One year I planted peas along a fence. Once they were up and climbing, I planted carrots in between them. As the peas got taller, I snipped off a few of the lowest leaves to give the carrots more...