Russelia rotundifolia I believe.

Please repost the image. THanks Chris

Also commonly referred to as Wax Begonias. The amount of ground each individual plant covers is dependent on how each individual plant grows for you. I've seen estimates of everything from 4 to 10 inches. With too much sun, the leaves can turn translucent and pretty ugly. Partial sun suits them fine and they don't mind being close together. I'm going to play Ken here and say your posts often leave out details that could be useful - are you wanting to cover a big space as in the Old Victorian practice of carpet bedding? A patch here and there? Or a border? How much space - as in footage - are you wanting to devote to this plant? Coverage might be trial and error as to the number of market packs you'd need. It's such a popular plant, Home Depot, Wal-mart, etc. carry racks and racks of them every year so not starting out with enough first time around is easy to remedy.

I have found that the flowers are typically more of a rose pink than the brilliant red shown in many photos (a bit of photo enhancement perhaps?). They are biennial, blooming the second year, then declining--sometimes after first bloom, you can stretch them for one or two more years. They are relatively easy from seed.