As well as the softneck type I also planted some hardnecked rocambole (Allium sativum ophioscorodon) or serpent garlic. It gets its name from the fantastically coiled stems that appear as it emerges from the underworld.
This short video shows them stretching up as they uncurl their last loop. In the background is a small Annie Elizabeth cooking apple tree on M26 rootstock. Looking back in my notes I see that I planted these back in February 2010. They didn't do much last year, but all of the bulbs came up strongly this year. Curiously I didn't know the common name for rocambole when I decided to plant it next to an apple tree.