Hello, I'm a newbie gardener and have made some progress in my first year growing lots of different plants and mostly succeeding but having some failures and lots of issues along the way! I have found this forum to be a brilliant source of information/wisdom, so was wondering if you guys could help out. I have grown some Cerinthe from seed and noticed today that there are black seeds appearing in many of them. I would prefer not to have them self-seed randomly as I still have so much work to do in the area they are planted in and don't want to accidentally dig up any seedlings. Should I collect the seeds now and pot them up? I really want more of these plants for next year as I just love them. Also, does anyone know if this years plants will die back quickly once the seed has been produced, or do they stay upright and colourful during the autumn/winter? Thanks in advance!