Posted: 16/06/2016 at 08:53
Not sure I understand?
You sowed the seeds in April 2015? Did they flower last summer and somehow survive the winter?
Are they the annual or perennial type.? If it was late in the season I would say they needed a good feed.
Seeds sown either last autumn or this spring will just be starting to flower. I sowed my annual sweet peas this February and they now have flower buds. I will expect them to flower until August, then I dump the lot on the compost heap.