Directory SearchLogin | Not a member? Join the chamber. The Gardner School of Minneapolis Share: Child Care Services The Gardner School of Minneapolis Visit Website 811 LaSalle Ave., Ste. 150 Minneapolis, MN 55402 (612) 615-7661 LinkedIn Facebook Hours: Monday - Friday, 7:00am - 6:00pm About Map About The Gardner School is an academically-focused preschool serving children 6 weeks to 5 years old. Directions The Gardner School is conveniently-located in the heart of downtown in the 811 LaSalle building on the ground level.