Soil fix?

Soil fix?

I have a small bit of the yard that I've been de-weeding in prep for planting a bunch of flower seeds. The soil is really heavy and clay like. How would you go about making the ground more suited for general planting? I was going to dig it up and mix it with some peat moss and compost. Thanks.
My new place

My new place

violas

violas

Ladybug on a sunroot leaf

Ladybug on a sunroot leaf

Let’s all eat our lawns!

Let’s all eat our lawns!

A bright yellow room!

A bright yellow room!

Because I’m not too swift. . .

Because I’m not too swift. . .