Are you asking what plants or what soil is in my beds?
If you want to know about soil, I purchased a dump truck full of topsoil from a local landscape company. They were able to back over the beds to dump and I was able to spread it out manually.
If you want to know about plants, I combine flowers (both annuals and perennials) mixed in with my crop vegetables. I only have iris and hostas now because I sacrificed my entire garden to eradicate Canadian thistle. Unfortunately, it didn’t completely get rid of them. I usually border the beds with low growing easy annuals (marigolds, petunias, etc) then plant crop plants like tomatoes, beans, radishes, lettuce, in the middle. I try to plant spreading plants like wave petunias near my early-harvest crops (onions, radishes, lettuce) so that when they are picked, the area fills in with flowers.