How does my geranium blossom like this? The petals are curled and there is white frost, and the leaves are normally unchanged. The first one was cut off like this, and the Internet looked it up to say that it was a manifestation of lack of fat, me

How does my geranium blossom like this? The petals are curled and there is white frost, and the leaves are normally unchanged. The first one was cut off like this, and the Internet looked up it as a manifestation of lack of fertilizer, and I put on nitrogen fertilizer and potassium dihydrogen phosphate. This second flower is still this ghostly look, is it the reason for the plastic of the flowerpot? It is really the geranium of the fire [tearful] unit that has been placed on the north window sill for many years, and it is not very manageable to open it. I took care of it so carefully but did not give it face, a posture of death to show me, and in a few days I will pull it out for you!