The annual Tulip Festival at Wooden Shoe Tulip Farm in Woodburn, Oregon, happens every year from late March through early May. Woodburn is located south of Portland, Oregon.
This past year we went on opening day. It's not always a good idea to go that early, because not all the tulips have started to bloom. This year it had been warm and we were in the area, so we figured it was worth a shot. Last year I stopped by the day before opening day and there were no tulips.
Check the field report on their website before you drive all the way out there.
There is a $5 per car entry fee. Once you've enter you can roam around the tulip fields for no additional charge. The admission fee also included some games for kids and the kid play areas.
They have vendors selling crafts and food. They also had a zipline, bounce house, and jumping area all for an additional charge.