This isn't bad, but what you really want to do is 5:1 clay and topsoil/compost, then mix in seeds and a bit of sugar.

They dry into stable ball that can fly some distance and crumbles on impact. The clay soaks into the area to give a small boost to water retention, the sugar is a quick boost of food for the plants, and the compost or soil is enough food to get it well rooted.

Second point, aim to use native plants, but look into the more tricky weeds of your area. Around here, milk thistle looks like a dandelion until it shoots up 3 feet, grows spikes, and becomes stiff enough to jam a mower. If you don't get every micron of root, they come right back. You really wanna send a message, tackweed grows everywhere and nothing says "I hate you" like a plant that can stab you through a boot. 'Cept maybe putting something illegal in their yard.