@Sooby, no grains in the middle of the plant, I used a spoon and put it just around the base.
I showed the pictures to the grower, he's far from me so I sent picture and immediately he replied that it's a fungus that modifies the structures of leaves so they can't emerge. He said to use a spray fungicide, it doesn't matter what, the first I find around. I'm thinking I could try that on a test plant. Do you think so?