POSTCARDENS
Leagues beyond just-add-water trinkets (dinosaur sponges, anyone?), this vegetable ink-based greeting card sends sentiments – with seeds. Just pop open your card, water the base, and sprinkle its packet over the diorama. In just a few days, you’ll have unruly sprouts of Lepidium sativum (that’s Garden cress) unfurling through the paper arches of your mini botanical garden.