Milkweed Matters began in 2014 when group founder Kelly Guilbeau began throwing loose milkweed seeds along the RAGBRAI route. The following year, seed ball dispersal began with 2,000 thrown during the ride in collaboration with another organization; Monarchs in Eastern Iowa. Last year the number of seed balls jumped to 58,459—made at 79 different events statewide by 3,406 people.