Grow-A-Note cards are greeting cards with the seeds of wildflowers embedded in the hand-made, recycled paper. When the recipient is finished with the card it can be planted directly in the ground or the seeds can be sprouted before planting. The paper acts as a mulch for the seeds — instructions for planting and growing are included with each card. The cards are made in the U.S. using soy inks. They also make these packs of Thank You cards too. Available from Good Humans for $3.50 each.