When do sweet williams flower?

I bought some sweet william plants a few weeks ago at a garden centre. It`s not clear on the ticket when they will flower. Will it be this season or are they to be planted this season to flower next year?

When do sweet williams flower?
Sweet william are biennials and the plants you bought are intended to flower next year .Plant them now and they will flower throughout may and june of next year.
Reply:Sweet William (Dianthus barbatus) flower in late spring. they flower in the second year after seeding. Their self-seeding tendencies and some carry-over of the mother plants allow them to stay productive for a few years.





try this: http://makemyhome.blogspot.com/2007/05/g...
Reply:They'll flower this year probably in a few weeks and then a second time later towards the fall. And forget that biannual stuff, I've had mine for the last 5 years and they are getting bigger each year and I will have to work at separating them in a few days. But you must have them protected where you plant them. If its in the ground make sure that there's some kind of wind break near by like steps or a building or something. If they are in pots then remember to plant them in the soil in around beginning of Oct.