Hi Alberto, You wrote "All the food that will be stored in the bulb when it goes dormant is in the green leaves. During the process previous to dormancy all this food is passed on to the bulb." By what mechanism does this happen? Thanks and best, John John T Lonsdale PhD 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 484 678 9856 Fax: 315 571 9232 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b