Known as the tri-lobed Hibiscus or Flower-of-a-Hour, this annual flower is an Old World native that has been introduced to the US and is often grown as an ornamental as well as purportedly having some medicinal properties (at the least, like most other Hibiscus it's a fairly non-toxic plant). Plants can grow up to 2 feet tall, with mildly branching stems and tri-lobed, bumpy-looking leaves as well as translucent sepals that protect developing flowers and seed pods, all covered in fine hairs. The blooms are early-morning, very ephemeral things, as their common name suggests popping open for only an hour or two (unless it's cool or cloudy) to display beautiful white petals with deep maroon bases.
Seed packs contain approx. 20 seeds. Nothing special required to germinate these, though they may be erratic.