Posted: 29/07/2014 at 15:24
foxgloves are biennial, so seed sown this year will flower next year. During the 1st year they build up their root system and strength, then flower in spring the following year. Most then die, or may go on for another year with a few flowers. There are perennial foxgloves, but no idea if yours is.
Who knows when or how yours were started, so it'll be a waiting game. Rather late in the season to expect anything much this year now. You may get a little spire with a few flowers, but next year it should really go for it so look forward to a magnificent show next spring.
Foxgloves self seed all over the place, so it's easy to keep them going year after year. You wont necessarily get the same colour as the parent though.