Hi Snuggles the Wishbone Flower is a kind of tubular violet. It's grown as a annual and will flower the whole summer. It likes moist soil, semi-shade and it likes a little shelter. It's height should be around 12 inches.
The Platycodon is called the ballon flower, it's a perennial and will multiply. They usually come in a shade of blue, but there are pink and white varities. with heights of 20-36 inches. They flower in the summer, like sun and a rich well drained soil. I have a blue variety and I need to stake them. I use circular stakes that work great.