Source: http://www.bombayharbor.com/Product/27315/Crackself_Magic_Egg.html
According to the descriptions on the instruction paper, which was inside the box with the egg, it is really easy to grow the plant. You just have to crack the top of the egg to make a small hole for the plant to grow out of. Then, you can water the plant two to three times a day, and place it in a place with a lot of sunlight. There were many different types of plants that could grow from the eggs; depending on the seeds that are inside the eggs, plants from strawberry flowers to tomatoes can grow from the Magic Eggs. Also, while searching for more information about the Magic Eggs, I found some interesting types of Magic Eggs, which are called “I Love You” Magic Eggs. They’re the same as other Magic Eggs, but their plants have messages such as “I Love You” and “Happy New Year” on the leaves. I think it would be a brilliant present for a person you want to send deliver a message to! These Magic Eggs are not really cheap, but I think it would be a good idea to have one!
Source: http://www.youtube.com/watch?v=Dy7Y2syq-7A&feature=related