Well past prime stock season....you are soon getting to too warm for stock to bloom.
Get them into the ground ASAP.
Linda C

Yes, stock is very tolerant of cold and can easily survive mild freezes. We are rapidly nearing the end of prime stock season. Once nights get above 60 degrees, they will most likely stop setting buds and start to look scraggly.

Thanks for your responses. A couple of days after that writing I decided to risk half of them and plant them. A couple of days later we had a pretty significant frost and the stock in the ground sailed right through it so I planted the rest.

They are doing OK, but no buds. I sure wish seed companies would give you instructions that are more specific to the plant instead of their standard blurb about "4-6 weeks before last frost date."