Wildflower garden/help with planting
2 years ago my husband used a rototiller to rip up some sod on the side of our front yard so I could plant a small wildflower garden.I guess its about 30' x 8'. He ripped thru the sod and afterwards I tried to get in there and pick up as much of the broken up sod as I could. I planted a wildflower mix, plus cosmos, black eyed susans, etc.
Anyways, the first year the cosmos and other annuals came up great. The next summer I forgot to put annual seeds down again so all I got were coneflower & black eyed susans. And a bunch of tall grasses.
This year I want to do the annuals again, but I am worried about the overgrowth of grasses. We live in Vermont and our property is 30 acres and it borders a swamp/marsh. So it seems like the perfect place for some nice wildflowers. I dont want to rip up the sod again because that will damage my perennials, right? Should I just try to throw down the annual mix or will they have a hard time growing because there isn't a layer of dirt on the top? What can I do to make it "right"? Thanks!