oca - how to hill up?
I'm trying oca (oxalis tuberosa) for the first time this year. I've seen advice that they will produce more if they are hilled up. But, I haven't found any specifics about how to do that.
There's lots of information about hilling up potatoes, but the oca plants have a very different structure with multiple stems and many small leaves at different heights. If I put soil around them I will be burying many of the leaves. Is that OK?
Thanks for any advice!