The two problems I see are a lack of sunlight and all the trees that are going to be dropping leaves on it next month. I've had real problems with both those issues myself. I've got one narrow plot in my woods that's maybe 40 feet wide with mature trees on the sides and I can't even get No Plow or Secret Spot from WI to grow there. I've given up on planting anything there but still keep it fertilized and limed and also disk it each year to revitalize the weeds that come up naturally. Hope you have better luck with yours!