Today, I deadheaded my sweet william. Is sweet william a biennal or a prennial? I know that I planted it last year and it didn't bloom. It stayed green all winter and then bloomed in the spring. I'm wondering now if the plant will die and come back in the spring, rebloom or stay green and bloom again next year. I saved the seeds in case I need to replant them. Dooley
Dooley as far as I know Sweet Williams are indeed Biennials. They are becoming popular again here in the UK after a long period where they seemed to have fallen 'out of fashion.' They are beautiful flowers and the bees certainly seem to love them!!
My Dianthus wintered over in a pot just fine, in fact it had tiny red buds on it all winter, they didn't open until sometime in March. If the seeds are sown in the ground after the last frost, then it doesn't bloom until the next year. If, on the other hand, you start them in flats before the last frost then put them in the ground after the last frost they might bloom the first year. It's called a herbaceous biennial/short lived perennial.