multiple centers in onions
Hello, Once again I am noticing my onions have multiple centers more often than not when I cut into them. Can anyone suggest why this keeps happening?
I start the seeds in late January in the house, with 15-20 seeds in a 4" pot. Then plant them in the garden in Mid-May with a straw mulch until early June. In the end of August they get pulled and finish drying in the barn for another month.
These are long day onions, Yellow of Parma are the ones I've checked so far.
Thanks for any ideas.