3161- Dazzling Blue. 50-60 days. If you're a fan of the ever-popular Nero di Toscana or dinosaur kale, you're going to be spellbound by Dazzling Blue!. It sports puckered, brilliant blue-green leaves highlighted with shocking pink midribs. Along with its showy appearance, Dazzling Blue proves to be especially cold-tolerant, surviving sub-freezing temperatures better than other lacinato types.