I have set aside a large amount which I have purchased solid stocks with the interest and dividends to be reinvested. Naturally I don't know how long I will be around, how would I go about making sure that the account will not be turned over to the kids (adults) for say 10 or 20 years? It is not about trust but about making sure that the account really grows before they get it. This is something special that I hope they will continue to grow until they retire or give it to their kids.

It will have to be done though a trust, and will depend on the laws of your state as to what is allowed.