Also known as Roquette, RocketThis fast-growing cool-season salad green - often ready to harvest as early as 4 weeks after seeding - adds a tangy, peppery or mustard-like flavor to salads and mesclun mixes.Seeds germinate quickly even in cold soil. Plant as soon as soil can be worked in spring. Avoid planting after other cabbage family crops.Plant ¼ inch deep and 1 inch apart in rows, or broadcast alone or mixed with other greens. Gradually thin to 6-inch spacings using thinnings for salads. Make new plantings every 2 to 3 weeks for a continuous supply until about a month before your average first frost date.Slow bolting by reducing heat and moisture stress. Provide some shade for warm-season plantings.