I've been growing Granex hybrids from seed for years. I plant after the Fall Equinox. They are always ready by March/April.

I do onion sets mid November. I get them from home depot. It is a large sweet white onion. I eat them in most stages of growth.

Shuffles got me started using seed last year, I grew them in large clay pots and they did well. I started the seed mid-September, pulled and spaced the sets late November, and pulled the bulbs early June just when the rainy season started. We still have tons of bulbs to eat :-)

Tom