My Cosmos this year are doing my head in. I always grow from seed and have never had issues before. In the front garden Flower buds form and seem to go 'crusty' and the foliage seems to get a red/pink tint. Growth is stunted (See first four pics). In the back garden, plants sown at the same time from the same seed packets, all are fine apart from one which has no buds at all but otherwise looks healthy (last pic). Any ideas what could be happening?
Gardening. The cause of, and solution to, all of my problems.