Catmint, Blue Wonder CatmintBlue Wonder Catmint is a dwarf herbaceous perennial with aromatic grey green foliage. The heavy blooms of loose whorls of lavender blue flower spikes bloom in through summer and are sterile. In southern states grows best with afternoon shade and dry, well drained soils. Has good drought tolerance Type: Perennial Height: 0. 5 1 Spread: 1 1. 5 Spacing: 1. 5 USDA Hardiness Zone: 3 8 Culture: Full Sun, Part Sun Bloom Color: Blue Season of Interest: Summer