
Although they've been around for awhile primarily serving the "crafts" industry, plantable papers are now available for offset printing.
Plantable Papers are handmade, "tree-free", recycled sheets of paper with wildflower seeds embedded in them. Commonly used for invitations, bookmarks, tags, and announcements, after use, you simply plant the paper in a sun drenched area, spread a thin layer of moist soil on the paper and keep the area moist during germination. In about 6-8 weeks your paper will begin to grow!
For more information:
Botanical PaperWorks
Plantable Paper
Plantable Seed Paper
Green Field Paper