Another frost seeding topic Soil test results are back for the in-laws place in Callaway County. I want to frost seed ladino clover in the blue areas. I will probably mix a companion crop into the micro-plots. The two long sections are 5-10 yards wide ridge top trails that currently have grass so I will have to spray those a couple times this Spring to kill the grass. My question is when should I fertilize? It almost feels counterproductive to throw a bunch down for the grass to absorb a few weeks before I kill it.