The age guidelines for 4-H participation are as follows: Eligibility for 4-H membership begins when a child has reached age 5 and is enrolled in kindergarten as of January 1 of the current year for Cloverbuds. Membership to the 4-H club (project) program begins when a child is at least age 8 and enrolled in 3rd grade as of January 1 of the current year. Ohio 4-H membership ends December 31st of the year in which an individual attains the age of 19. If you have questions about the age guidelines, please call our office.