Each card grows wildflowers when planted. Our paper is handmade using a recycled paper pulp and embedded with seeds. Just plant the entire card, keep the soil moist and watch for wildflowers to sprout! Our hand-drawn illustrations are letterpress printed in Brooklyn, NY on heavy weight, handmade paper. All cards are blank inside. Size A2 (4.25 x 5.5 inches). Planting instructions printed on the back. Packaged with a sustainably made envelope in a plastic sleeve.