I have a lot of wild garlic mustard plants growing in my yard.I let them grow till the flowers fade then I pull them up. i get them every spring,after that its a little tough keepingthings growing inthose spots. those spots are under a group of 13 tulip poplar trees. does recomend something that would grow well in the same spot with flowers and about a foot or two tall and bloom in late summer or fall. still working on that engish garden.