B. napus 30 days (baby leaf); 65 days (full size). KX-1 was bred with baby-leaf harvests in mind, producing tender leaves with unique scalloped edges and a lively, mustardlike bite that is perfect for salads. Seedlings emerge bright green, but the foliage quickly develops a deep red tone. As the plants mature, the color intensifies to an extraordinary glossy indigo-black while the flavor mellows and becomes smooth and mild. The large leaves can reach a foot long and grow on impressive plants up to 3 feet tall, holding their rich color even when cooked. Dependable in both our spring and fall trials, KX-1 powers through heat waves without bolting and delivers impressive productivity.