MrILovetheAnts. I have gathered and am still gathering seed from the Cerinthe. I will have seed available if you want me to send some to you.
Ann is 100% correct with what she is saying about cerinthe. They are annuals. I am not overly pleased with them as a source for the bees. I have a row growing in front of the apiary and the only interest is that of the bumblebees, maybe the bees use them at times when I am not looking, like buckwheat, which they work the mornings and late afternoons. But I haven't seen the bees on them.
The cerinthe I thought would have made excellent plants. They are more than beautiful to the eye, but I think that they would do best in hanging containers, where the beautiful blue flowers could be viewed from below. I see that the plants are about 2 feet high and the flowers droop so much that the only way to get a really good view of them is to sit on the ground and look up. They don't live for that long as far as I can see, before the pretty greyish blue foliage begins to yellow and look kind of ugly. They are in full sun, and as Ann says, I think they would do better in a shadey spot, but mayb the flowers would not be as pronounced. I have some growing also on the west side of my house, they are larger plants, but don't seem to be as dense flowers. I will take some pics and compare, they are still alive. These plants (as many annals) self-seed like crazy, so once you grow them you probably "got" them for life.
Have a wonderful day, beautiful life and health. Cindi