Wat to go Mo-your a step ahead of the game interseeding those beets. That's gonna be a killer plot. I'm getting ready to start interseeding my brassicas, rye, and oats. Actually, I've got a couple plots in insane population locations that are interseeded in rye already. That rye is a couple inches already. If you have a plot like beans that is getting destroyed already, I would add some rye, or brassicas before the weeds start taking over. It is a little early for oats, which is ideal to interseed mid july in my area.