Located in Vienna, VA, Green Hedges School has a highly acclaimed Montessori program for ages 2-5 that transitions into a preparatory program for Grades 1-8. GHS was founded in 1942 by Frances and Kenton Kilmer. Small Wonder. Green Hedges is a small school, and that's one of our biggest strengths. Children here get the care, the nurturing, the personal attention, and the guidance they need to thrive as learners and as young people. And thrive they do. The foundation they gain here stays with them in high school and for the rest of their lives.