I have a row of asparagus in my front yard in the upper portion of a small retaining wall. I had originally planned to plant peppers with the asparagus, because they are supposed to benefit each other, and because peppers are relatively expensive. Peppers are mostly perennial in my climate (10a).
I planted a few peppers, and while they seem to be working, I realized that there is a flaw with my plan: Both asparagus ferns and pepper plants are upright growing and do not provide any coverage over the ground to suppress weeds. I could use mulch, but I'm
gardening in a suburban/city lot, so I'd like to maximize the space.
Would ground cherries (or golden berries) work better? They are the same plant family, so it seems like they
should provide the same benefits. They cover more of the ground and are spreading. On the other hand, would they choke out the asparagus altogether?
Are there other options or ideas that might work better? I have strawberries already growing somewhere else.
Thanks!