The new and distinct cultivar of ornamental cultivar of bee balm plant named Monarda ‘Blue Moon’ has compact, clumping habit with short rhizomes, basally branching stems, medium to dark green foliage with slight tinting of greyed purple, numerous large lavender blue-colored flowers creating excellent flower coverage and foliar resistance to powdery mildew. ‘Blue Moon’ may rebloom in early fall if cut back hard. The new plant is useful for landscaping in containers or in the ground, as accent plants or en masse.
