Feasibility of Selling Late-Sown Bedding Plants

[packrat79]

I'm still relatively new to planting seedlings indoors, but even so I decided to take on a big project this year and try to grow them for profit. I sowed a few hundred seeds, mostly of good-selling flowers like Petunias and Marigolds, and usually six to a tray. Most flowers are doing well, but since they were sowed late (around mid-April), they are still relatively small and are unlikely to bloom for at least another month.
My questions is this: would there still be a market for bedding plants in the middle of June, or later? Most local nurseries have closed up by that time, and I'm wondering if this would actually give me an advantage.
Thanks for any advice.