This is a test of commonsense. Complete the next sentence:

How to grow sweet onions
Aim to plant in early to mid spring.
Your onions will have the best chance if they're grown in loose, fertile, and well-draining soil with a ph between 6.0 and 6.8. Use a tiller to break up the soil in the garden bed.
Spread 2 inches (5 cm) of mature compost or aged manure over the garden bed and work it into the soil with the tiller. You can test the ph of the soil with a home soil test kit or with a ph meter.