Local Carlton County Master Gardeners will answer gardening questions on Tuesday, May 29, from 6:30 to 7:30 p.m. Master Gardeners are volunteers trained by the University of Minnesota. They offer a wide variety of volunteer services pertaining to any type of gardening. Fact sheets produced by the university will be available for free. A square foot gardening display will be available for demonstration. Square foot gardening is meant for high productivity gardening in small spaces. This is a great chance for beginning gardeners to get some free expert advice.