
Sweet William is a Biennial- so you sow it this year for flowers next. I'll be doing likewise this August, sowing a few hundred plants for using out and about next year.
A lot of the plants I used as fillers between my floribunda roses in the front garden, they add to the perfume and help to fill the gaps between plants - a wonderful compliment plant to Roses. We also have them planted in pots in a courtyard in the North West Regional College.