The good news is that my prairie boulevard in Saint Paul is flourishing. The bad news is that each year the plants seem to be getting taller. Some are easily up to 5 feet. City ordinance is limited to 3 feet. So far, no one has complained, but it is excessive for an urban area. Plus, it's hard for drivers to see around the plants when they pull out of the alley. Short of Round-Up, do you have any suggestions for getting this area under control? I did pull out several wild bergamot plants last year and sow shorter native plant seeds as an experiment, but the new plants are still in the stage where I'm not sure if it's a weed or a plant and will probably take a couple of years to establish. Plus, I swear that the plants surrounding the seeded area grew taller with the increase in space. It would be nice to keep native plants but they must be shorter. How have other people managed this problem? Thanks.