This is the plot I did. It is my summer cover crop for the garden. Or tax deductible dove plot however you want to look at it. This was a fall cover crop of cereal rye crimson clover and winter peas. The best part is just a single application of roundup then rolled the cover crop down with a cultipacker then drilled sunflowers in with a regular drill with a few holes taped up to get more spacing. I went over it a couple times worried I wasn't getting enough seed thru the thatch. The weed suppression was great. Here are two pics one of the flowers and one of the ground underneath. This is the edge of the row so it will be better further into the plot.