Postman Joyner Caladiums are made for the shade, with it's (fancy) leafy green and pink colors it thrives in the shade but can tolerate early morning and late afternoon sun. The Postman Joyner is the ideal plant for use in patio boxes, window sills or as border plants. Also known as Angel Wings. You can start these indoors: Put a bit of potting soil, a little water and the bulb in a plastic bag. Poke a few air holes in the bag and place it near a heat vent. ( Needs 70° or higher) Once all danger of frost has passed, you may plant your started caladium outdoors.