You can read it for free at the Tor.com site, or buy it for your e-reader for only 99¢. Purchase links are at the end of the story.
It tells what happens to a boy when seeds from outer space land on Earth. Are the seeds a disaster? How do they change people’s lives? How do they change the Earth? Why were they sent? None of the answers come easy for the boy in the story, and some of the answers might surprise you, especially in the last few paragraphs when he finally understands.
— Sue Burke