Yes like garlic; the bulbs multiply. You need to harvest the bunches when the tops die down and keep them in storage until use; always saving some for the next planting. I nterplant mine between the strawberry rows; spaced about 6 - 8 inches. apart.

With garlic; treat about the same; fall plantings work best. If you use that much garlic; you might want to do a split planting going for 60% in fall and 40% in spring. The fall planting would be harvest in summer and the spring planting in fall (and possibly kept in ground until needed.)

You can try direct seeding the onion in late summer then applying mulch over the rows once it turns cold.

As for yield; it depends on the soil type. The average head of garlic is 10 - 12 cloves; each clove grows into a new head. If you are using 2 heads per week/ 104 per year plan on planting 12 full cloves; allowing a bit for some failure.

Thanks, Rain. I don't think I could get garlic to survive the summer around here.
Just ordered two phones of a two pound mix of ago Rojo and two Turbans from a farm in Souther AZ. I'd like to do some soft neck, maybe 1/2-1 pond, as well.
I'll get maybe 1/2 pound of shallots since I haven't ever used them much and plan on direct sowing short day onions, no idea what variety. I'm partial to red types.