Susan Monroe wrote:
I just don't think that you really need to interplant guild plants for them to be effective. Of course, I may be wrong. But if they do need to be interplanted, and asparagus doesn't like competition, they might be counterproductive, and otherwise pointless.
Now if you want perennial sunflowers, try sun chokes (they are perennial through a very wide range of zones.) But I would not plant them with the asparagus since the roots would interfere with the asparagus.
Avoid - Onion, Garlic, Potatoes