Easy to grow, easy to manage and absolutely delectable, mountain mint is the only mint we allow in our gardens. Most mints are rampant perennials, quickly taking over your garden, as so many of us have learned the hard way. Mountain mint also flowers in late summer, weeks and weeks after most mints flower, so you'll enjoy more bright, refreshing mint longer into the season, especially if you harvest it often. Mountain mint thrives in nearly any soil, from clay to sand and wet to dry. At Fruition, we sow mountain mint indoors in soil blocks four weeks before final frost, transplanting out after final frost with one foot between plants.