I'm sifting out rocks in my garden, which I'm pretty sure used to be a gravel lot. I'm wanting to grow root vegetables like radishes and carrots, so I don't want them having to push rocks out of the way as they grow.
I've heard that you shouldn't worry about rocks under an inch in diameter, so according to that, I should be sifting these rocks out.
But.. I've also heard not to worry about rocks smaller than an egg, so according to that, I shouldn't worry.
What size rocks are worth sifting out of a garden, and which ones aren't?