Ran by Mason Cain, the goal of the Free Native Seed Project is to replace as much lawn as possible with Native Plants, for free. 
This "Private-Conservation" is becoming a necessity for the survival of wildlife across the U.S...

The need for private-conservation 

When we think of conservation we think of National Park's, National Wildlife Refuge's or maybe even local nature sanctuary's. Although these are in-arguably priceless for conservation and wildlife, they are disconnected. Sometimes literally biological islands in a sea of development. East of the Mississippi River, where most land is privately owned, it is up to land owners to bridge these biological islands. Although we cannot make land appear out of thin air, there is one ample source of potential habitat in America for all but our biggest creatures….