The Sweet Seeds for Haiti Event (April 2010) was introduced on April 30, 2010 and ended on May 17, 2010. These seeds are different from regular seeds in that you must purchase the ability to plant them with cash. 50% of all farm cash used to purchase sweet seed planting ability is donated by Zynga "to support the development of a new K-12 school for the children of Mirebalais, Haiti".