“You can throw them out of a moving car, from a bicycle, on a hike,” says Daniel Cunningham, a horticulturist at Texas A&M, who has conducted preliminary trials on bomb-making techniques that lead to higher rates of seed germination. Before you go launching wildflower seed projectiles, start with a solid recipe. You’ll need a mixing bowl and baking sheets. Add one part native wildflower seed mix — Cunningham’s include bluebonnets, blanket flowers and native grasses, but yours should reflect what grows endemic to your region — to four parts powdered clay and five parts fine-grained compost. Mix the dry ingredients thoroughly and stir in water slowly until you have a thick, bread-dough-like consistency.
Read more at https://www.nytimes.com/2020/03/03/magazine/how-to-make-a-wildflower-bomb.html