A flower powerhouse! If you want a bonanza of blooms on a plant that comes back faithfully year after year, look no further. Walker's Low Catmint greets the sweet, mild days of late spring with a lavish display of lavender-blue blossoms, and the show lasts a long time. The soothing color calms down hot reds and oranges in the garden and mingles effortlessly with pastels. You can't go wrong. It's a bit of a misnomer, though�Walker's Low is one of the taller