My seedlings sprouted around April, so there around 5 months, when can I expect flowers?
When do Hibiscus seedlings get first flowers?
Many perennials won't bloom their first year from seed so I wouldn't expect blooms this year.
I haven't actually tried to start seeds - they have self-sowed all around my garden. There were about three that I decided to see how they came out last summer and they bloomed this year. Good luck! This is one of them....
Your Hibiscus looks like white lace on a wedding dress, very elegant!
It most often depends upon the variety of hib...my experience indicates that most of the native hibs require 2 growing seasons to bloom and several of the more stable hardy hibs such as the Luna Series often require 3. The Rose of Sharon grow as weeds locally and often bloom the first year from seeds cast in the fall...