You can prepare the ground now for sowing wildflowers
Wildflowers are among the easiest plants to grow, especially if you copy Mother Nature. For cool climate gardeners, that means spreading seed over the ground after the first killing frost and before the ground hardens. Natural germination inhibitors will keep them from sprouting if temperatures warm.
Seeds can be sown well into winter for people who live in the Deep South, but it’s best to get that done ahead of the seasonal rains.