The Cleveland Botanical Garden is looking for Horticulture Intern. It's a hands-on opportunity at the 10-acre outdoor garden with an opportunity for research. They're looking for students who have completed two years of college in a horticulture, botany, or related fields. There is a minimum three month committment for this internship position.
Check out the PDF for how to apply.
For more infomation about the Cleveland Botanical Garden, check out their website.