Amity Daffodil Festival

April 10-11, 2010
http://www.daffodilfestivals.com/insidetemp.php?festid=1469
It is worth visiting, just to watch them judge daffodils.

Wooden Shoe 25th Annual Tulip Fest

March 25 - April 25, 2010
http://www.woodenshoe.com/
Look at map for directions.
I think this is best to visit during the week, less crowded.
Better chance to talk with people.

The Daffodil Drive Festival - Junction City

March 20-21, 2010
http://junctioncity.com/news/daffodils/index.htm

Other Daffodils:

Mitsch Novelty Daffodils

http://www.mitschdaffodils.com/
You are not going to believe the beauty of some of these daffodils!
Look at map for directions.
In the same general area as Wooden Shoe Tulip Farm, but turn left at Meridian Road and go to Sconce Road and turn right. Keep going on Sconce Road and you will be turning left into the farm. Go all the way to the house. Be sure to look in their shed.