About 500,000 plants make up the 5-acre sunflower maze at Sweetfields Farm in Masaryktown, shown at right in an aerial view. The maze is open weekends through June 5, plus Memorial Day from 10 a.m. to 4 p.m. Admission for adults is $8.50; children 3-11, $4.50; and children 2 and younger,free. In addition to the maze, the farm at 17250 Benes Roush Road also offers games, hayrides and a tree house. Saturday night is firefly night. To register for that and for information, visit www.sweetfieldsfarm.com.