This will be my first year attending..Here is some info from the website:
Dates & Times
Saturday, May 3rd, 2008 from 10 a.m. to 5 p.m.
Sunday, May 4th, 2008 from 10 a.m. to 5 p.m.
Some gardens are open on one day only, some on both days
"The Mary Lou Heard Memorial Garden Tour is a yearly, self-guided charity event held by the Mary Lou Heard Foundation, a California 501(c)(3) nonprofit organization dedicated to continuing Mary LouÂs life work. While we ask you to give as generously as you can, no price will ever be set for viewing the gardens. Let your heart and your spirit dictate the amount of your gift."
I must mention this is in the Orange Co area. Judging by the pics on the website, it should be a fantastic tour!!
Here is a link that might be useful: tour info