At what environment do garlic grow stems and sort of like flower things?

I am just curious and want to use this topic in a science fair project. Does it grow in cold, moist air; cold, dry air; hot, moist air; or hot dry air?

At what environment do garlic grow stems and sort of like flower things?
Garlic is easy to grow and can be grown year-round in mild climates. In cold climates, cloves can be planted in the ground about six weeks before the soil freezes, and harvested in late spring. Garlic plants are not attacked by pests. They can suffer from pink root, a disease that stunts the roots and turns them pink or red. Garlic plants can be grown close together, leaving enough room for the bulbs to mature, and are easily grown in containers of sufficient depth.