How do I grow larger onions in central Ohio? I have a raised garden bed with a soil mix that is 15 inches deep - mostly a garden soil mix consisting of 60% compost, 30% clay, and 10% sand in which I mixed another 10% zoo brew (compost from organic material from Columbus Zoo) and 5% vermiculite. I worked in a handful of Scott's Vegetable and Flower slow releaser fertilizer (10-10-10) and planted the sets (all about 3/4 inches in diameter) one inch deep on March 16th. I planted 50 white onions and 50 red onions in a tight grid pattern so all the sets were about 2 1/2 inches apart. It took a full two weeks for the first sets to sprout. Almost every set came up. As the weather warmed the tops grew thick and tall. Over the last 140 days I watered the onions every 2 or 3 days. None of the onions went to seed. The tops were mostly dried out and bent over so today I pulled all the onions. Only two onions were starting to rot, the rest were quite solid, but the rings are thin and the onions mostly small. I got 12 red onions about 2 1/4 inches in diameter, the rest were only 1 inch. I got 18 white onions about 2 1/4 inches in diameter, the rest were only 1 inch. I could not discern a pattern for where the larger onions were located in the grid. My raised bed gets 7 to 9 hours of sunlight - depending on the month. I'm wondering if I planted the onions too close. Perhaps they need more sunlight or more fertilizer. I would appreciate your thoughts on this. Thank you.